diff --git a/Router.php b/Router.php
index 332c36e..6fff50a 100644
--- a/Router.php
+++ b/Router.php
@@ -16,11 +16,14 @@ require_once 'vendor/autoload.php';
 
 // Application and Models autoload
 spl_autoload_register(function ($class_name) {
-    if(file_exists(__DIR__."/application/".$class_name.'.php')){
-        include __DIR__."/application/".$class_name.'.php';
+    if (file_exists(__DIR__ . "/application/" . $class_name . '.php')) {
+        include __DIR__ . "/application/" . $class_name . '.php';
+//        echo "Load class " . __DIR__ . "/application/" . $class_name . '.php' . "<br>\n";
     }
-    elseif(file_exists(__DIR__."/models/".$class_name.'.php')) {
-        include __DIR__."/models/".$class_name.'.php';
+    elseif(file_exists(__DIR__ . "/models/" . $class_name . ".php")) {
+        include_once __DIR__."/models/Model.php";
+        include_once __DIR__ . "/models/" . $class_name . ".php";
+//        echo "Load class ".__DIR__."/models/".$class_name.'.php'."<br>\n";
     }
 });
 
@@ -31,6 +34,12 @@ $twigSettings = PRODUCTION?['cache' => __dir__.'/tmp/']:[];
 $loader = new Twig\Loader\FilesystemLoader(__dir__ . '/templates/'.Config::get('system', 'template', 'default')."/");
 $twig = new Twig\Environment($loader, $twigSettings);
 
+$filter = new Twig\TwigFilter('t', function ($string) {
+    return _(strip_tags($string));
+});
+
+$twig->addFilter($filter);
+
 
 class Config {
     private static $instance = null;
@@ -53,4 +62,16 @@ class Config {
         }
         return $default;
     }
+}
+
+function model($name){
+    return;
+    if(file_exists(__DIR__ . "/models/" . $name . ".php")){
+        include_once __DIR__ . "/models/Model.php";
+        include_once __DIR__ . "/models/" . $name . ".php";
+    }
+    else {
+        echo "FAULT<br>\n";
+        echo __DIR__ . "/models/" . $name . ".php". " doesn't exist";
+    }
 }
\ No newline at end of file
diff --git a/application/Auth.php b/application/Auth.php
index 72b2f36..115ba58 100644
--- a/application/Auth.php
+++ b/application/Auth.php
@@ -17,10 +17,21 @@ class Auth {
     }
 
     public static function loginWithCredentials($email, $pass, bool $stayLoggedIn = false){
-        $Auth = new Auth();
+        session_destroy();
+        self::$instance = null;
+        $Auth = Auth::getInstance();
 
         $err = [];
 
+        if(strlen($email) < 3){
+            $err[] = __("Please enter a valid email.");
+        }
+        if(strlen($pass) < 3){
+            $err[] = __("Please enter a valid password. Hint: The passwords need to have at least 6 characters.");
+        }
+
+        if(!empty($err)){ return $err; }
+
         // get user from database
         $getUserSQL = "SELECT pwd, user_id, user_email FROM user WHERE user_email = ? LIMIT 1;";
         $getUserRes = DB::query($getUserSQL, $email);
@@ -41,14 +52,16 @@ class Auth {
             $userKey = GenKey();
             $shaUserKey = sha1($userKey);
             $expire = $stayLoggedIn?30:0; // if "stay logged in", stay logged in for 30 days.
+            $ctime = time();
 
             $updateUserSQL = "INSERT INTO user_login (user_id, ckey, ctime, expire, agent) VALUES (?, ?, ?, ?, ?);";
             try {
-                DB::query($updateUserSQL, $dbUserId, $userKey, time(), $expire, $md5agent);
+                DB::query($updateUserSQL, $dbUserId, $userKey, $ctime, $expire, $md5agent);
                 $_SESSION['user_id']    = $dbUserId;
                 $_SESSION['user_name']  = $dbUserName;
                 $_SESSION['user_agent'] = $md5agent;
                 $_SESSION['user_key']   = $shaUserKey;
+                $_SESSION['user_ctime'] = $ctime;
 
                 if($stayLoggedIn){
                     setcookie("auth", $shaUserKey.".".$dbUserId, time() + (30 * 24*60*60), "/", $_SERVER['HTTP_HOST'], isset($_SERVER['HTTPS']), true );
@@ -56,11 +69,11 @@ class Auth {
                 return true;
             }
             catch(DatabaseException $e){
-                $err[] = "Failed to login.\n".$e;
+                $err[] = __("Failed to login.")."\n".$e;
             }
         }
         else {
-            $err[] = "Username and/or Password is wrong.";
+            $err[] = __("The provided combination of username and password is not recognized in the system. Verify your details or create an account.");
         }
 
         return $err;
@@ -102,8 +115,76 @@ class Auth {
         return false;
     }
 
-    public static function logout(){}
+    public static function logout($everywhere = false){
+        if(Auth::checkLogin()){
+            $logoutSql = "DELETE FROM user_login WHERE user_id = ?";
+            $sqlparams[] = $_SESSION['user_id'];
+            if(!$everywhere){
+//                $logoutSql .= " AND agent = ?";
+//                $sqlparams[] = md5($_SERVER['HTTP_USER_AGENT']);
+                $logoutSql .= " AND ctime = ?";
+                $sqlparams[] = $_SESSION['user_ctime'];
+            }
 
+            DB::query($logoutSql, $sqlparams);
+        }
+
+        // Delete session-cookie
+        $params = session_get_cookie_params();
+        setcookie(session_name(), '', time() - 42000,
+            $params["path"], $params["domain"],
+            $params["secure"], $params["httponly"]
+        );
+
+        setcookie('auth', '', time() - 42000, "/", $_SERVER['HTTP_HOST'], isset($_SERVER['HTTPS']), true );
+
+        // Finally, destroy the session.
+        session_destroy();
+    }
+
+
+    public static function register($userEmail, $userPass, $metadata = []){
+        $err = [];
+
+        $userName = $metadata['newName'] ?? '';
+
+        if(strlen($userPass) < 6){
+            $err[] = __("Password is too short. Password needs to be at least 6 characters!");
+        }
+        else if(strlen($userPass) > 30){
+            $err[] = __("Password is too long. Max length is set to 30 characters. If you believe it should be higher please contact the developers.");
+        }
+
+        if(strlen($userEmail) > 220){
+            $err[] = __("Your email-address is too long. Can you please register with another email?");
+        }
+
+        if(strlen($userName) > 200){
+            $err[] = __("Your name seems to be too long to fit this system. Maybe you can short it down somehow?");
+        }
+
+        if(empty($err)){
+            // HASH PASSWORD
+            $newPass = PwdGen($userPass, true);
+
+            $createUserSQL = "INSERT INTO user SET user_email = ?, pwd = ?, full_name = ?;";
+            try {
+                DB::query($createUserSQL, $userEmail, $newPass, $userName);
+                $newID = DB::insert_id();
+
+                if(empty($newID)){ return false; }
+
+                $updateUserSQL = "UPDATE user SET md5_id = ? WHERE user_id = ?;";
+                DB::query($updateUserSQL, md5($newID), $newID);
+
+                return true;
+            } catch (DatabaseException $e) {
+                $err[] = __("Something went wrong").":<br>" . $e;
+            }
+        }
+
+        return $err;
+    }
 
     public static function checkLogin($strict = false): bool {
         $Auth = Auth::getInstance();
diff --git a/application/DB.php b/application/DB.php
index 234cbd1..867aef5 100644
--- a/application/DB.php
+++ b/application/DB.php
@@ -4,16 +4,24 @@ class DB {
     private static $instance = null;
     private $db;
 
+    /**
+     * @throws DatabaseException
+     */
     private function __construct(){
-        $this->db = new mysqli(
-            Config::get('database', 'host'),
-            Config::get('database', "user"),
-            Config::get('database', "pass"),
-            Config::get('database', "database")
-        );
+        try {
+            $this->db = new mysqli(
+                Config::get('database', 'host'),
+                Config::get('database', "user"),
+                Config::get('database', "pass"),
+                Config::get('database', "database")
+            );
 
-        if($this->db->connect_error){
-            die("Connection failed: " . $this->db->connect_error);
+            if($this->db->connect_error){
+                throw new DatabaseException("Database connection failed: ". $this->db->connect_error);
+            }
+        }
+        catch (mysqli_sql_exception $e){
+            throw new DatabaseException($e->getMessage(), $e->getCode());
         }
     }
 
@@ -52,16 +60,12 @@ class DB {
     }
 
     /**
+     * @param integer $mode 0: Execute normally - 1: Execute, but print query - 2: Only print query
+     * @param string $sql Input SQL as string
+     * @param mixed ...$params A list or an array of values for the query
      * @throws DatabaseException
      */
-    private static function doQuery($mode, $sql, ...$params){
-        /*
-        Modes:
-        0: Execute normally
-        1: Execute, but print query
-        2: Only print query
-        */
-
+    private static function doQuery(int $mode, string $sql, ...$params){
         // Check if query parameters comes as an array, or as individual arguments
         if(count($params) == 1 && is_array($params[0])){
             $params = $params[0];
@@ -69,7 +73,7 @@ class DB {
 
         // Create type-specification for query
         $types = "";
-        foreach($params as &$value){
+        foreach($params as $value){
             if(is_double($value)){
                 $types .= "d";
             }
@@ -90,17 +94,44 @@ class DB {
             return [];
         }
 
-        $stmt = $db->db->prepare($sql);
-        if(
-            $stmt === false ||
-            $stmt->bind_param($types, ...$params) === false ||
-            $stmt->execute() === false
-        ){
-            throw new DatabaseException($db->db->error);
+        try {
+            $stmt = $db->db->prepare($sql);
+            if(
+                $stmt === false ||
+                (!empty($params) && $stmt->bind_param($types, ...$params) === false) ||
+                $stmt->execute() === false
+            ){
+                throw new DatabaseException($db->db->error);
+            }
+        }
+        catch (mysqli_sql_exception $e){
+            throw new DatabaseException($e->getMessage(), $e->getCode());
         }
 
         return $stmt->get_result();
     }
+
+    /**
+     * @throws DatabaseException
+     */
+    public static function multiQuery(...$sql){
+        $db = DB::getInstance();
+
+        foreach ($sql as $s){
+            try {
+                $db->db->multi_query($s);
+            }
+            catch (mysqli_sql_exception $e){
+                throw new DatabaseException($e->getMessage(), $e->getCode());
+            }
+        }
+    }
+
+    public static function insert_id(){
+        $db = DB::getInstance();
+
+        return $db->db->insert_id;
+    }
 }
 
 class DatabaseException extends Exception {
diff --git a/application/Translator.php b/application/Translator.php
new file mode 100644
index 0000000..4564b4a
--- /dev/null
+++ b/application/Translator.php
@@ -0,0 +1,170 @@
+<?php
+
+class Translator {
+    public function __construct(){
+        $this->language = "nb";
+        $this->country = "NO";
+        $this->charset = "utf8";
+
+        $this->locale = $this->language."_".$this->country.".".$this->charset;
+
+        if (defined('LC_MESSAGES')) {
+            setlocale(LC_MESSAGES, $this->locale);
+            bindtextdomain("domain1", __dir__."/../locale/");
+        } else {
+            echo "IS IN THE ELSE - PART";
+        }
+
+        textdomain("domain1");
+    }
+}
+
+/*
+use Gettext\Loader\PoLoader;
+
+class Translator {
+    private static $instance = null;
+    private $translations;
+    private $language;
+    private $country;
+    private $charset;
+    private $locale;
+
+    private function __construct($lang = "nb", $contry = "NO", $charset = "utf8"){
+
+        $this->language = $lang;
+        $this->country = $contry;
+        $this->charset = $charset;
+        $this->locale = $this->language."_".$this->country.".".$this->charset;
+
+        //import from a .po file:
+        $poloader = new PoLoader();
+        $this->translations = $poloader->loadFile('locale/'.$this->language.'.po');
+    }
+
+    public static function getInstance(): Translator {
+        if(self::$instance == null){
+            self::$instance = new Translator();
+        }
+
+        return self::$instance;
+    }
+
+    static public function translate($string, $domain = "messages"): string {
+        $trans = self::getInstance();
+
+        return $trans->translations;
+    }
+
+    static public function getBrowserSupportedLanguage(){
+        $language = null;
+        $input = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
+
+        $supported_languages = ["en", "no"];
+
+        $browserLanguages = explode(",", str_replace(' ', '', strtolower($input)));
+
+        foreach ($browserLanguages as $languageString){
+            // Stop looking for languages if one is found
+            if(!empty($language)){ break; }
+
+            // Check for language in format "en_US"
+            $stringParts = explode('-', $languageString);
+
+            // If not in that format, check for "en;q=0.9" format
+            if(count($stringParts) <= 1){
+                $stringParts = explode(';', $languageString);
+            }
+
+            // If whichever format, check if the first key is a supported language
+            if(count($stringParts) > 1 && in_array($stringParts[0], $supported_languages)){
+                $language = $stringParts[0];
+            }
+            // If in neither format, check the whole string
+            elseif(in_array($languageString, $supported_languages)){
+                $language = $languageString;
+            }
+        }
+
+        // If no language found, set the first one in the supported-list
+        if(empty($language)){
+            $language = $supported_languages[0];
+        }
+
+        return $language;
+    }
+}
+*/
+
+use Gettext\Scanner\PhpScanner;
+use Gettext\Translations;
+use Gettext\Generator\PoGenerator;
+use Gettext\Generator\MoGenerator;
+
+
+class TranslatorScanning {
+    public $scanner;
+
+    public function __construct($domain = "default"){
+
+        $phpScanner = new PhpScanner(
+            Translations::create($domain)
+        );
+
+        //Set a default domain, so any translations with no domain specified, will be added to that domain
+        $phpScanner->setDefaultDomain($domain);
+
+        //Extract all comments starting with 'i18n:' and 'Translators:'
+        $phpScanner->extractCommentsStartingWith('i18n:', 'Translators:');
+
+        //Scan files
+        foreach (glob(__DIR__.'/../www/{*,*/*,*/*/*}.php', GLOB_BRACE) as $file) {
+//            echo $file."<br>\n";
+            $phpScanner->scanFile($file);
+        }
+
+        $this->scanner = $phpScanner;
+    }
+
+    public function save(){
+        //Save the translations in .po files
+        $generator = new PoGenerator();
+
+        foreach ($this->phpScanner->getTranslations() as $domain => $translations) {
+            echo "Generate file: ".__DIR__."/../www/{$domain}.po<br>\n";
+            $generator->generateFile($translations, __DIR__."/../www/{$domain}.po");
+        }
+    }
+
+
+    public static function compiler(){
+        $loader = new PoLoader();
+
+        //From a file
+        $translations = $loader->loadFile(__DIR__."/../www/domain1.po");
+
+        $generator = new MoGenerator();
+        $generator->generateFile($translations, __DIR__."/../www/domain1.mo");
+
+
+
+//        From a string
+//        $string = file_get_contents('locales2/en.po');
+//        $translations = $loader->loadString($string);
+    }
+}
+
+// Resources: https://packagist.org/packages/gettext/gettext
+// Resources: https://www.sitepoint.com/easy-multi-language-twig-apps-with-gettext/
+
+
+function __($string, ...$values): string {
+    if(DEBUG){
+        logTranslationKey($string);
+    }
+    return sprintf( _($string), $values);
+}
+
+function logTranslationKey($string){
+    file_put_contents("translationkeys.txt", file_get_contents("translationkeys.txt") . "\n" . $string);
+}
\ No newline at end of file
diff --git a/application/Utils.php b/application/Utils.php
index f2ebe84..9349599 100644
--- a/application/Utils.php
+++ b/application/Utils.php
@@ -18,5 +18,16 @@ class Utils {
         }
     }
 
-
+    public static function debug(...$args){
+        foreach($args as $arg){
+            echo "<pre>";
+            if(is_bool($arg)){
+                var_dump($arg);
+            }
+            else {
+                echo print_r($arg, true);
+            }
+            echo "</pre>\n";
+        }
+    }
 }
\ No newline at end of file
diff --git a/application/WebPage.php b/application/WebPage.php
index e74163e..e87da69 100644
--- a/application/WebPage.php
+++ b/application/WebPage.php
@@ -17,6 +17,8 @@ class WebPage {
 
 
     public function __construct(){
+        new Translator();
+
         $this->pr = Config::get('system', 'projectroot', '');
         $this->loggedIn = Auth::checkLogin();
 
@@ -28,6 +30,11 @@ class WebPage {
         }
 
         try {
+            if(isset($_POST) && !empty($_POST)){
+                $this->sanitizePost();
+                $this->doPost();
+            }
+
             $this->prepareNavbar();
             $this->load();
 
@@ -35,7 +42,7 @@ class WebPage {
                 $this->template = str_replace('.php', '.html', $_SERVER['SCRIPT_NAME']);
             }
 
-            if($this->httpStatus == 200){
+            if($this->httpStatus == 200 || $this instanceof ErrorPage){
                 global $twig;
 
                 if(DEBUG){
@@ -43,7 +50,7 @@ class WebPage {
                     header("X-Script-name: ".$_SERVER['SCRIPT_NAME']);
                 }
 
-                http_response_code(200);
+                http_response_code($this->httpStatus);
 
                 echo $twig->render($this->template, $this->vars());
             }
@@ -55,7 +62,9 @@ class WebPage {
         catch (\Twig\Error\LoaderError $e){
             http_response_code(500);
             if( $e->getCode() == 0){
+                echo "<pre>";
                 print_r($e->getMessage());
+                echo "</pre>";
             }
             else {
                 echo $e;
@@ -63,12 +72,21 @@ class WebPage {
         }
         catch(\Twig\Error\RuntimeError | \Twig\Error\SyntaxError | Exception $e) {
             http_response_code(500);
-            echo $e;
-            print_r( $this->vars() );
+
+            if(!$this instanceof ErrorPage){
+                $e = new ErrorPage(500, $e, print_r( $this->vars(), true ));
+            }
+            else {
+                echo "<h1>A critical error occurred!</h1>";
+                echo "<pre>".$e."</pre>";
+            }
+
         }
     }
 
-    function load(){ throw new Exception("Incomplete implementation"); }
+    function load(){    throw new Exception("Incomplete implementation"); }
+
+    function doPost(){  throw new Exception("Incomplete implementation"); }
 
     function vars(): array {
         return (array) $this;
@@ -83,6 +101,20 @@ class WebPage {
             ["href"=>"/review/", "name"=>"Review", "active"=>$this->activePage=="/review/"?'active':'']
         ], $this->navbar ?? []);
     }
+
+    protected function sanitizePost(){
+        $data = [];
+
+        foreach($_POST as $key => $value){
+            if(($data[$key] = Utils::filter($value)) === false){
+                $err[] = __("Failed to sanitize: `%s`: %s \t-\t type: %s\n", $key, $value, gettype($value));
+            }
+        }
+
+        if(!empty($err)){ return $err; }
+        $this->data = $data;
+        return true;
+    }
 }
 
 class WebPageAuth extends WebPage {
@@ -91,4 +123,38 @@ class WebPageAuth extends WebPage {
             parent::__construct();
         }
     }
+}
+
+class ErrorPage extends WebPage {
+
+    public $errCode = 500;
+    public $errormessage = "An unexpected error occurred";
+    public $errorDescription = "";
+    public $template = "errors/500.html";
+
+    public function load(){
+        if($this->errCode != 500){
+            $this->template = "errors/$this->errCode.html";
+        }
+    }
+
+    public function __construct($errCode = 500, $e = "", $extra = ""){
+        $this->errCode = $errCode;
+        if($e instanceof Exception){
+            $this->errormessage = $e->getMessage();
+        }
+        $this->errorDescription = $e;
+        $this->errorDescription .= "\n".$extra;
+
+        parent::__construct();
+    }
+}
+
+function isExecutingPage($file) : bool {
+    $file1 = explode("/", $file);
+    $request = str_replace('/','', $_SERVER['REQUEST_URI']);
+    if(strstr($request, '?')){
+        $request = explode('?', $request)[0];
+    }
+    return $request == $file1[ array_key_last($file1) ];
 }
\ No newline at end of file
diff --git a/composer.json b/composer.json
index 4777dcc..5d6ce76 100644
--- a/composer.json
+++ b/composer.json
@@ -2,6 +2,9 @@
     "require": {
         "twbs/bootstrap": "5.1.3",
         "twig/twig": "^3.3",
-        "ext-mysqli": "*"
+        "ext-mysqli": "*",
+        "gettext/gettext": "^5.6",
+        "ext-gettext": "*",
+        "gettext/php-scanner": "^1.3"
     }
 }
diff --git a/composer.lock b/composer.lock
index 215e281..ea81e02 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,8 +4,271 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "0daa3afffc94d70bd593d310cef916f8",
+    "content-hash": "6111dbb0fd97c255b22341c3bbfb4f67",
     "packages": [
+        {
+            "name": "gettext/gettext",
+            "version": "v5.6.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-gettext/Gettext.git",
+                "reference": "017e249601d32b9a88c2eb4c10eac89bf582a7d3"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-gettext/Gettext/zipball/017e249601d32b9a88c2eb4c10eac89bf582a7d3",
+                "reference": "017e249601d32b9a88c2eb4c10eac89bf582a7d3",
+                "shasum": ""
+            },
+            "require": {
+                "gettext/languages": "^2.3",
+                "php": "^7.2|^8.0"
+            },
+            "require-dev": {
+                "brick/varexporter": "^0.3.5",
+                "friendsofphp/php-cs-fixer": "^3.2",
+                "oscarotero/php-cs-fixer-config": "^2.0",
+                "phpunit/phpunit": "^8.0|^9.0",
+                "squizlabs/php_codesniffer": "^3.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Gettext\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Oscar Otero",
+                    "email": "oom@oscarotero.com",
+                    "homepage": "http://oscarotero.com",
+                    "role": "Developer"
+                }
+            ],
+            "description": "PHP gettext manager",
+            "homepage": "https://github.com/php-gettext/Gettext",
+            "keywords": [
+                "JS",
+                "gettext",
+                "i18n",
+                "mo",
+                "po",
+                "translation"
+            ],
+            "support": {
+                "email": "oom@oscarotero.com",
+                "issues": "https://github.com/php-gettext/Gettext/issues",
+                "source": "https://github.com/php-gettext/Gettext/tree/v5.6.1"
+            },
+            "funding": [
+                {
+                    "url": "https://paypal.me/oscarotero",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/oscarotero",
+                    "type": "github"
+                },
+                {
+                    "url": "https://www.patreon.com/misteroom",
+                    "type": "patreon"
+                }
+            ],
+            "time": "2021-12-04T11:33:21+00:00"
+        },
+        {
+            "name": "gettext/languages",
+            "version": "2.9.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-gettext/Languages.git",
+                "reference": "ed56dd2c7f4024cc953ed180d25f02f2640e3ffa"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-gettext/Languages/zipball/ed56dd2c7f4024cc953ed180d25f02f2640e3ffa",
+                "reference": "ed56dd2c7f4024cc953ed180d25f02f2640e3ffa",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^4.8 || ^5.7 || ^6.5 || ^7.5 || ^8.4"
+            },
+            "bin": [
+                "bin/export-plural-rules"
+            ],
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Gettext\\Languages\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Michele Locati",
+                    "email": "mlocati@gmail.com",
+                    "role": "Developer"
+                }
+            ],
+            "description": "gettext languages with plural rules",
+            "homepage": "https://github.com/php-gettext/Languages",
+            "keywords": [
+                "cldr",
+                "i18n",
+                "internationalization",
+                "l10n",
+                "language",
+                "languages",
+                "localization",
+                "php",
+                "plural",
+                "plural rules",
+                "plurals",
+                "translate",
+                "translations",
+                "unicode"
+            ],
+            "support": {
+                "issues": "https://github.com/php-gettext/Languages/issues",
+                "source": "https://github.com/php-gettext/Languages/tree/2.9.0"
+            },
+            "funding": [
+                {
+                    "url": "https://paypal.me/mlocati",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/mlocati",
+                    "type": "github"
+                }
+            ],
+            "time": "2021-11-11T17:30:39+00:00"
+        },
+        {
+            "name": "gettext/php-scanner",
+            "version": "v1.3.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-gettext/PHP-Scanner.git",
+                "reference": "989a2cffa1d0f43d13b14c83a50429119b5eb8e4"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-gettext/PHP-Scanner/zipball/989a2cffa1d0f43d13b14c83a50429119b5eb8e4",
+                "reference": "989a2cffa1d0f43d13b14c83a50429119b5eb8e4",
+                "shasum": ""
+            },
+            "require": {
+                "gettext/gettext": "^5.5.0",
+                "nikic/php-parser": "^4.2",
+                "php": ">=7.2"
+            },
+            "require-dev": {
+                "friendsofphp/php-cs-fixer": "^2.15",
+                "oscarotero/php-cs-fixer-config": "^1.0",
+                "phpunit/phpunit": "^8.0",
+                "squizlabs/php_codesniffer": "^3.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Gettext\\Scanner\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Oscar Otero",
+                    "email": "oom@oscarotero.com",
+                    "homepage": "http://oscarotero.com",
+                    "role": "Developer"
+                }
+            ],
+            "description": "PHP scanner for gettext",
+            "homepage": "https://github.com/php-gettext/PHP-Scanner",
+            "keywords": [
+                "gettext",
+                "i18n",
+                "php",
+                "scanner",
+                "translation"
+            ],
+            "support": {
+                "email": "oom@oscarotero.com",
+                "issues": "https://github.com/php-gettext/PHP-Scanner/issues",
+                "source": "https://github.com/php-gettext/PHP-Scanner/tree/v1.3.1"
+            },
+            "time": "2022-03-18T11:47:55+00:00"
+        },
+        {
+            "name": "nikic/php-parser",
+            "version": "v4.13.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/nikic/PHP-Parser.git",
+                "reference": "210577fe3cf7badcc5814d99455df46564f3c077"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/210577fe3cf7badcc5814d99455df46564f3c077",
+                "reference": "210577fe3cf7badcc5814d99455df46564f3c077",
+                "shasum": ""
+            },
+            "require": {
+                "ext-tokenizer": "*",
+                "php": ">=7.0"
+            },
+            "require-dev": {
+                "ircmaxell/php-yacc": "^0.0.7",
+                "phpunit/phpunit": "^6.5 || ^7.0 || ^8.0 || ^9.0"
+            },
+            "bin": [
+                "bin/php-parse"
+            ],
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "4.9-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "PhpParser\\": "lib/PhpParser"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Nikita Popov"
+                }
+            ],
+            "description": "A PHP parser written in PHP",
+            "keywords": [
+                "parser",
+                "php"
+            ],
+            "support": {
+                "issues": "https://github.com/nikic/PHP-Parser/issues",
+                "source": "https://github.com/nikic/PHP-Parser/tree/v4.13.2"
+            },
+            "time": "2021-11-30T19:35:32+00:00"
+        },
         {
             "name": "symfony/polyfill-ctype",
             "version": "v1.25.0",
@@ -304,7 +567,10 @@
     "stability-flags": [],
     "prefer-stable": false,
     "prefer-lowest": false,
-    "platform": [],
+    "platform": {
+        "ext-mysqli": "*",
+        "ext-gettext": "*"
+    },
     "platform-dev": [],
-    "plugin-api-version": "2.2.0"
+    "plugin-api-version": "2.3.0"
 }
diff --git a/scripts/cron.php b/scripts/cron.php
new file mode 100644
index 0000000..9b91928
--- /dev/null
+++ b/scripts/cron.php
@@ -0,0 +1,7 @@
+<?php
+
+require_once __dir__ . '/../Router.php';
+
+
+// Deletes logins which are older than 24 hours.
+DB::query("DELETE FROM user_login WHERE expire = 0 AND ctime < ?", time() - 24 * 60 * 60);
diff --git a/templates/default/assets/base.html.twig b/templates/default/assets/base.html.twig
index 0cab0a9..000df6f 100644
--- a/templates/default/assets/base.html.twig
+++ b/templates/default/assets/base.html.twig
@@ -49,9 +49,9 @@
                     </ul>
                     <div class="navbar-nav" id="navLogin">
                         {% if loggedIn %}
-                            <a class='nav-item nav-link' href='{{ pr }}/logout.php'>Log out</a>
+                            <a class='nav-item nav-link' href='{{ pr }}/logout.php'>{{ 'Log out'|t }}</a>
                         {% else %}
-                            <a class="nav-item nav-link" id='login' href='{{ pr }}/login.php'>Login</a>
+                            <a class="nav-item nav-link" id='login' href='{{ pr }}/login.php'>{{ 'Login'|t }}</a>
                         {% endif %}
                     </div>
                 </div>
@@ -71,10 +71,11 @@
         {% endif %}
 
         {% block content %}{% endblock %}
+
     </div>
 
     <footer>
-        Any prices you find on this website is added by its users and are only a guideline.<br>
+        {{ 'Any prices you find on this website is added by its users and are only a guideline.'|t }}<br>
         <strong>PaperBag</strong> is a <a href="//svagard.no/projects/paperbag" target="_blank" rel="nofollow">Svagård</a> project<br>
 
         {#
@@ -88,5 +89,7 @@
     </footer>
 </div>
 
+{% block endContent %}{% endblock %}
+
 </body>
 </html>
\ No newline at end of file
diff --git a/templates/default/errors/500.html b/templates/default/errors/500.html
new file mode 100644
index 0000000..12d6ce8
--- /dev/null
+++ b/templates/default/errors/500.html
@@ -0,0 +1,12 @@
+{% extends "assets/base.html.twig" %}
+
+{% block content %}
+    <h1 class="headline text-center"><img src='paperbag_small.svg' style="height: 4rem;" alt='Logo' /> PaperBag</h1>
+    <div class="container-sm" style="padding-top: 5px; text-align: center; background: #fffe; border-radius: 10px;">
+
+        <h1>500 - An unexpected error occured</h1>
+        <h3>{{ errormessage }}</h3>
+        <pre style="text-align: left;">{{ errorDescription }}</pre>
+
+    </div>
+{% endblock %}
\ No newline at end of file
diff --git a/templates/default/login.html b/templates/default/login.html
index c2a016e..91c310f 100644
--- a/templates/default/login.html
+++ b/templates/default/login.html
@@ -9,7 +9,7 @@
             <div class="form-group row mb-1">
                 <label for="loginEmail" class="col-sm-2 col-form-label">Email</label>
                 <div class="col-sm-10">
-                    <input type="email" class="form-control" name="loginEmail" id="loginEmail">
+                    <input type="email" class="form-control" name="loginEmail" id="loginEmail" value="{{ data.loginEmail }}">
                 </div>
             </div>
             <div class="form-group row">
@@ -19,7 +19,7 @@
                 </div>
             </div>
             <div class="form-check" style="margin: 3px 0;">
-                <input class="form-check-input" type="checkbox" id="gridCheck">
+                <input class="form-check-input" type="checkbox" id="gridCheck" name='cookieAccept' value="1" {% if data.cookieAccept %}checked="checked"{% endif %}">
                 <label class="form-check-label" for="gridCheck">
                     I agree to save a temporary cookie in my browser for the logged in functions to work.
                 </label>
diff --git a/templates/default/register.html b/templates/default/register.html
new file mode 100644
index 0000000..6704df4
--- /dev/null
+++ b/templates/default/register.html
@@ -0,0 +1,36 @@
+{% extends "assets/base.html.twig" %}
+
+{% block content %}
+    <div class='container-sm' style="max-width: 540px;">
+
+        <h1 class="headline text-center">Register</h1>
+
+        <form action="register.php" method="POST" class="row">
+            <input type="hidden" name="referrerPage" value="<?=$returnToPage;?>">
+            <div class="col-md-6">
+                <label for="newEmail" class="form-label">Email*</label>
+                <input type="email" class="form-control" id="newEmail" name="newEmail" maxlength="220" required value="{{ data.newEmail }}">
+            </div>
+            <div class="col-md-6">
+                <label for="newPassword" class="form-label">Password*</label>
+                <input type="password" class="form-control" id="newPassword" name="newPassword" minlength="6" maxlength="30" required>
+            </div>
+            <div class="col-12">
+                <label for="newName" class="form-label">Full name</label>
+                <input type="text" class="form-control" id="newName" name="newName" maxlength="200" value="{{ data.newName }}">
+            </div>
+            <div class="col-12" style="margin: 3px 0;">
+                <div class="form-check">
+                    <input class="form-check-input" type="checkbox" id="gridCheck" required>
+                    <label class="form-check-label" for="gridCheck">
+                        I will read the Terms and Conditions when they are published.
+                    </label>
+                </div>
+            </div>
+            <div class="col-12 mb-3">
+                <button type="submit" class="btn btn-primary w-100">Sign up</button>
+            </div>
+        </form>
+        <p>Already have an account? <a href="login.php">Login</a></p>
+    </div>
+{% endblock %}
\ No newline at end of file
diff --git a/www/login.php b/www/login.php
index c493373..a105480 100644
--- a/www/login.php
+++ b/www/login.php
@@ -4,7 +4,7 @@ require_once '../Router.php';
 
 class LoginPage extends WebPage {
     public $pagekey = "login";
-    public $title = "PaperBag - Plan & Execute Your Shopping";
+    public $title = "Login - PaperBag - Plan & Execute Your Shopping";
     public $returnToPage = "/";
 
     function load(){
@@ -17,13 +17,9 @@ class LoginPage extends WebPage {
         if(isset($_GET['thank'])){
             $this->msg[] = "Thank you for registering. Please log in to continue!";
         }
-
-        if(isset($_POST) && !empty($_POST)){
-            $this->doPost();
-        }
     }
 
-    private function findReturnPage(){
+    protected function findReturnPage(){
         if(isset($_POST['referrerPage'])){
             $this->returnToPage = $_POST['referrerPage'];
         }
@@ -39,23 +35,22 @@ class LoginPage extends WebPage {
         }
     }
 
-    private function doPost(){
-        $data = [];
-
-        foreach($_POST as $key => $value){
-            if(($data[$key] = Utils::filter($value)) === false){
-                echo "Failed to sanitize: `".$key."`: ".$value." \t-\t type: ".gettype($value)."\n";
-            }
-        }
-
+    function doPost(){
         $stayLoggedIn = isset($_POST['stayLoggedIn']);
-        $err = Auth::loginWithCredentials($data['loginEmail'], $data['loginPwd'], $stayLoggedIn);
+        $err = Auth::loginWithCredentials($this->data['loginEmail'], $this->data['loginPwd'], $stayLoggedIn);
         if($err === true){
             header("Location: ".$this->returnToPage);
             die();
         }
+
+        // Do not send the password back to the client...
+        $this->data['loginPwd'] = null;
+
         $this->err = $err;
     }
 }
 
-$a = new LoginPage();
+// For use when class is extended upon
+if(isExecutingPage(__file__)){
+    $a = new LoginPage();
+}
\ No newline at end of file
diff --git a/www/logout.php b/www/logout.php
index a43c6c4..83abc75 100644
--- a/www/logout.php
+++ b/www/logout.php
@@ -1,7 +1,6 @@
 <?php
-require 'webdata/init.php';
+require_once '../Router.php';
 
-logoutUser();
-
-header("Location: ".getConfig('projectRoot')."/");
+Auth::logout();
 
+header("Location: ".Config::get('system', 'projectRoot', '')."/");
diff --git a/www/register.php b/www/register.php
index 23431ab..ba0e081 100644
--- a/www/register.php
+++ b/www/register.php
@@ -1,120 +1,32 @@
 <?php
-require 'webdata/init.php';
 
-$returnToPage = "./";
-if(isset($_POST['referrerPage'])){
-    $returnToPage = $_POST['referrerPage'];
-}
-else if(isset($_SERVER['HTTP_REFERER'])){
-    $returnToPage = $_SERVER['HTTP_REFERER'];
-}
-if(stristr($returnToPage, "login.php") || stristr($returnToPage, "register.php")){
-    $returnToPage = "./";
-}
+require_once '../Router.php';
+require_once 'login.php';
 
-if(isset($_POST) && !empty($_POST)) {
-    $db = database();
-    $data = [];
+class RegisterPage extends LoginPage {
+    public $pagekey = "register";
+    public $title = "Register - PaperBag - Plan & Execute Your Shopping";
+    public $returnToPage = "/";
 
-    foreach ($_POST as $key => $value) {
-        if (($data[$key] = filter($value)) === false) {
-            print_r($value);
-            echo "Failed to sanitize: `" . $key . "`: " . $value . " \t-\t type: " . gettype($value) . "\n";
+    function load(){
+        $this->findReturnPage();
+
+        if(Auth::checkLogin(true)){
+            header("Location: ".$this->returnToPage);
         }
     }
 
-    $userEmail = $data['newEmail'];
-    $userPass = $data['newPassword'];
-    $userName = $data['newName'] ?? '';
-
-    if(strlen($userPass) < 6){
-        $err[] = "Password is too short. Password needs to be at least 6 characters!";
-    }
-    else if(strlen($userPass) > 30){
-        $err[] = "Password is too long. Max length is set to 30 characters. If you believe it should be higher please contact the developers.";
-    }
-
-    if(strlen($userEmail) > 220){
-        $err[] = "Your email-address is too long. Can you please register with another email?";
-    }
-
-    if(strlen($userName) > 200){
-        $err[] = "Your name seems to be too large to fit this system. Maybe you can short it somehow?";
-    }
-
-    if(empty($err)){
-        // HASH PASSWORD
-        $newPass = PwdGen($userPass, true);
-
-        $createUserSQL = "INSERT INTO user SET full_name = '$userName', user_email = '$userEmail', pwd = '$newPass';";
-        if($db->query($createUserSQL)){
-            $newID = $db->insert_id;
-            $updateUserSQL = "UPDATE user SET md5_id = '".md5($newID)."' WHERE user_id = '$newID';";
-            $db->query($updateUserSQL);
-
+    function doPost(){
+        $err = Auth::register($this->data['newEmail'], $this->data['newPassword'], $this->data);
+        if($err === true){
             header("Location: login.php?thank");
+            die();
         }
-        else {
-            $err[] = "Something went wrong:<br>".$db->error;
-        }
+        $this->err = $err;
 
+        // Do not send the password back to the client...
+        $this->data['newPassword'] = null;
     }
 }
 
-?><!DOCTYPE html>
-<html lang="en">
-<head>
-    <?=getHtmlHeaders();?>
-    <title>Register - PaperBag</title>
-</head>
-<body id='plan'>
-    <div id="page-container">
-        <div id="page-wrapper">
-    <?php include 'webdata/navbar.php'; ?>
-
-    <div class='container-md' style="max-width: 720px;">
-
-        <h1 class="headline text-center">Register</h1>
-        <br>
-
-        <?php if(!empty($err)){
-            foreach($err as $e){
-                echo "<div class='alert alert-danger' role='alert'>$e</div>";
-            }
-            echo "<br>";
-        }
-        ?>
-
-        <form action="register.php" method="POST" class="row">
-            <input type="hidden" name="referrerPage" value="<?=$returnToPage;?>">
-            <div class="col-md-6">
-                <label for="newEmail" class="form-label">Email*</label>
-                <input type="email" class="form-control" id="newEmail" name="newEmail" maxlength="220" required value="<?= $data['newEmail'] ?? '';?>">
-            </div>
-            <div class="col-md-6">
-                <label for="newPassword" class="form-label">Password*</label>
-                <input type="password" class="form-control" id="newPassword" name="newPassword" minlength="6" maxlength="30" required>
-            </div>
-            <div class="col-12">
-                <label for="newName" class="form-label">Full name</label>
-                <input type="text" class="form-control" id="newName" name="newName" maxlength="200" value="<?= $data['newName'] ?? '';?>">
-            </div>
-            <div class="col-12" style="margin: 3px 0;">
-                <div class="form-check">
-                    <input class="form-check-input" type="checkbox" id="gridCheck" required>
-                    <label class="form-check-label" for="gridCheck">
-                        I will read the Terms and Conditions when they are published.
-                    </label>
-                </div>
-            </div>
-            <div class="col-12 mb-3">
-                <button type="submit" class="btn btn-primary w-100">Sign up</button>
-            </div>
-        </form>
-        <p>Already have an account? <a href="login.php">Login</a></p>
-    </div>
-        </div>
-        <?php include 'webdata/footer.html'; ?>
-    </div>
-</body>
-</html>
\ No newline at end of file
+$a = new RegisterPage();