diff --git a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/admin.inc.php b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/admin.inc.php
index 8cc2610..8d987e3 100644
--- a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/admin.inc.php
+++ b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/admin.inc.php
@@ -20,7 +20,7 @@ dbConnector::connect(
 );
 
 // authentication of the current user 
-participo::authentificate();
+participo::authenticate();
 if (!participo::isUserAdmin()) {
     header('Location: /participo', true, 301);
 }
diff --git a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/api.starter.add.php b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/api.starter.add.php
index 5af7aef..027b5d0 100644
--- a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/api.starter.add.php
+++ b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/api.starter.add.php
@@ -14,7 +14,7 @@ dbConnector::connect(
 	$cwsvJudoConfig['db']['password']
 );
 
-participo::authentificate();
+participo::authenticate();
 
 $eventId = $_POST['eventId'] ?? null;
 $startingTypeId = $_POST['type'] ?? null;
diff --git a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/api.starter.remove.php b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/api.starter.remove.php
index 6087eae..4373ffe 100644
--- a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/api.starter.remove.php
+++ b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/api.starter.remove.php
@@ -14,7 +14,7 @@ dbConnector::connect(
 	$cwsvJudoConfig['db']['password']
 );
 
-participo::authentificate();
+participo::authenticate();
 
 $starterId = $_POST['starterId'] ?? null;
 $returnToUrl = $_POST['returnToUrl'] ?? 'participo/';
diff --git a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/api.user.add.php b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/api.user.add.php
index 9bb60da..e16d289 100644
--- a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/api.user.add.php
+++ b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/api.user.add.php
@@ -15,7 +15,7 @@ dbConnector::connect(
 	$cwsvJudoConfig['db']['password']
 );
 
-participo::authentificate();
+participo::authenticate();
 
 $loginName = $_POST['loginName'] ?? null;
 $name = $_POST['name'] ?? null;
diff --git a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/attendance.php b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/attendance.php
index 546b4e9..6c17f06 100644
--- a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/attendance.php
+++ b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/attendance.php
@@ -21,7 +21,7 @@ setlocale(LC_ALL, 'de_DE@euro', 'de_DE', 'de', 'ge');
 		$cwsvJudoConfig['db']['password']
 	);
 
-	participo::authentificate();
+	participo::authenticate();
 	$user = participo::sessionUser();
 	$usersKids = getUsersKids(dbConnector::getDbConnection(), $_SESSION['user']['userId']);
 
diff --git a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/event.php b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/event.php
index 2da7d96..5c2eda5 100644
--- a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/event.php
+++ b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/event.php
@@ -6,7 +6,8 @@ require_once 'participoLib/event.php';
 
 // Configs
 require_once 'config/participo.php';
-require_once $config['basePath'] . '/config/cwsvJudo.config.php';
+// @todo Switch to json saved settings
+require_once $config['home'] . '/.local/cwsvJudo.config.php';
 
 participo::init($cwsvJudoConfig);
 
@@ -24,12 +25,12 @@ participo::init($cwsvJudoConfig);
     <!-- inits for the materializeCss -->
     <script src="events.js"></script>
 
-    <title><?php echo($meta['title']); ?></title>
+    <title><?php echo ($meta['title'] ?? "title missing"); ?></title>
     <meta name="description"
-        content="<?php echo($meta['description']); ?>" />
+        content="<?php echo ($meta['description'] ?? "description missing"); ?>" />
 
-    <link rel="icon" href="<?echo($config['ressourceUrl']);?>/graphiken/icons/cwsv.ico" />
-    <link rel="apple-touch-icon" href="<?echo($config['baseUrl']);?>/apple-touch-icon.png">
+    <link rel="icon" href="<? echo ($config['ressourceUrl']); ?>/graphiken/icons/cwsv.ico" />
+    <link rel="apple-touch-icon" href="<? echo ($config['baseUrl']); ?>/apple-touch-icon.png">
 
 </head>
 
@@ -44,4 +45,4 @@ participo::init($cwsvJudoConfig);
     </main>
 </body>
 
-</html>
+</html>
\ No newline at end of file
diff --git a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/events.inc.php b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/events.inc.php
index df4fb02..f535202 100644
--- a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/events.inc.php
+++ b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/events.inc.php
@@ -22,7 +22,7 @@ dbConnector::connect(
     $cwsvJudoConfig["db"]["password"]
 );
 
-participo::authentificate();
+participo::authenticate();
 
 $meta = [
     "title" => "Event Planer",
diff --git a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/events.sidenav.inc.php b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/events.sidenav.inc.php
index 431bad5..2089fb2 100644
--- a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/events.sidenav.inc.php
+++ b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/events.sidenav.inc.php
@@ -4,7 +4,7 @@
 		<div class="nav-wrapper">
 			<a href="/participo" class="breadcrumb">cwsvJudo-Apps</a>
 			<a href="/participo/events" class="breadcrumb">
-				<?php echo($meta['title']); ?>
+				<?php echo($meta['title'] ?? "missing title"); ?>
 			</a>
 			<a class="right top-nav sidenav-trigger waves-effect waves-light hide-on-large-only" href="#"
 				data-target="nav-mobile">
diff --git a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/index.inc.php b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/index.inc.php
index 38afc3f..0f9de76 100644
--- a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/index.inc.php
+++ b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/index.inc.php
@@ -32,4 +32,4 @@ dbConnector::connect(
 );
 
 // authentication of the current user
-participo::authentificate();
+participo::authenticate();
diff --git a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/infoZettel.php b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/infoZettel.php
index 2078e0a..a0c8c72 100644
--- a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/infoZettel.php
+++ b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/infoZettel.php
@@ -14,7 +14,7 @@
 	require_once $basePath . '/ressourcen/phpLib/parsedown/Parsedown.php';
 	require_once $basePath . '/ressourcen/phpLib/Spyc/Spyc.php';
 
-	participo::authentificate();
+	participo::authenticate();
 
 // get a list of all infoZettel
 $fileList = glob($basePath . '/infoZettel/*.md');
diff --git a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/lib/participoLib/eventPage.php b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/lib/participoLib/eventPage.php
index 177cae9..5ef28ea 100644
--- a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/lib/participoLib/eventPage.php
+++ b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/lib/participoLib/eventPage.php
@@ -24,7 +24,7 @@ class EventPage
     public function getHtmlNotFound()
     {
         return '<div>Der Event "' .
-            $this->id .
+            $this->eventId .
             '" existiert leider nicht!</div>' .
             "<h2>Anstehende Termine</h2>" .
             eventPlaner::getHtmlEventTable(eventPlaner::getComingWkEvents());
diff --git a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/lib/participoLib/participo.php b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/lib/participoLib/participo.php
index 42c0da9..b4d6e8b 100644
--- a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/lib/participoLib/participo.php
+++ b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/lib/participoLib/participo.php
@@ -7,6 +7,7 @@ require_once "participoLib/eventPage.php";
 require_once "participoLib/starter.php";
 require_once "participoLib/planer.php";
 
+
 /**
  * FrameWork for the participoApp
  */
@@ -123,7 +124,7 @@ class participo
      *
      * @retval void
      */
-    public static function authentificate($action = "login")
+    public static function authenticate($action = "login")
     {
         // Ensure a session is started
         session_start();
@@ -147,15 +148,17 @@ class participo
                 logLoginsToJsonFile($user->getLoginName());
                 // we're not logged in, but authorized for the stuff we want to do. So don't redirect
                 return;
+            } else {
+                participo::addMessage("error", "Api key invalid (e.g., deprecated)");
             }
         }
 
-        // if not returned yet: no login, no valid apiKey -> redirect to login page
+        // if not returned yet: no login, no valid apiKey -> redirect to login page but remove the api key rom the query
         if (!self::isLoginValid()) {
             header(
                 "Location: login?returnToUrl=" .
                     urlencode(
-                        $_SERVER["REQUEST_URI"] . ($_POST["fragment"] ?? "")
+                        participo::removeQueryParameter($_SERVER["REQUEST_URI"], "apiKey") . ($_POST["fragment"] ?? "")
                     ),
                 true,
                 301
@@ -164,6 +167,38 @@ class participo
         }
     }
 
+    /**
+     * remove query parameter from an url
+     * 
+     * @param [string] $url url to clean of a query parameter
+     * @param [string] $param query parameter to remove
+     * 
+     * @return [string] input url with query parameter (key and value) removed
+     */
+    public static function removeQueryParameter(string $url, string $param): string
+    {
+        if (str_contains($url, "?")) {
+
+            list($baseUrl, $urlQuery) = explode('?', $url, 2);
+            parse_str($urlQuery, $urlQueryArr);
+            unset($urlQueryArr[$param]);
+
+            if (count($urlQueryArr)) {
+                return $baseUrl . '?' . http_build_query($urlQueryArr);
+            }
+        }
+        return $url;
+    }
+
+    /**
+     * Store persistent data in the session data
+     */
+    public static function shutdown(){
+        $_SESSION["participo"] = [
+            "messages" => participo::getMessages()
+        ];
+    }
+
     /** Initialize the participoApp
      *
      * - validate the login
@@ -174,13 +209,33 @@ class participo
      */
     public static function init($config)
     {
-        self::authentificate();
+        // setup the storing of 
+        register_shutdown_function("participo::shutdown");
+        // set up a database connection
         self::initDb(
             $config["db"]["host"],
             $config["db"]["name"],
             $config["db"]["user"],
             $config["db"]["password"]
         );
+        // authenticate the user
+        self::authenticate();
+
+        // init the participo app
+        // - get stored messages from the session data
+        self::initMessages();
+    }
+
+    /**
+     * Move the messages from the session data into the participo app
+     * 
+     * - move means the source gets deleted after copying
+     */
+    private static function initMessages() : void
+    {
+        self::$message = $_SESSION["participo"]["messages"] ?? ["error" => null, "success" => null, "notice" => null];
+
+        unset($_SESSION["participo"]["messages"]);
     }
 
     private static function initDb($host, $name, $user, $password)
@@ -194,28 +249,28 @@ class participo
      * - Params in the request that aren't in given a parsing function aren't parsed and hence not returned.
      *
      * @param [array(paramName => parseFunction)] $params array of the name of the param and a sanitizer/parsing/input function
-     * @return array(parsedParam=>paramValue) Associative array of the name of the param and its parsed value
+     * @return [array(parsedParam=>paramValue)] Associative array of the name of the param and its parsed value
      */
     public static function parseParams($params)
     {
         $method = $_SERVER["REQUEST_METHOD"];
-        $request = explode("/", substr(@$_SERVER["PATH_INFO"], 1));
+        // $request = explode("/", substr($_SERVER["PATH_INFO"], 1));
 
         $parsedParams = [];
         foreach ($params as $paramName => $parseFunction) {
             $parsedParams[$paramName] = null;
             switch ($method) {
-                // case 'PUT':
-                // 	do_something_with_put($request);
-                // 	break;
+                    // case 'PUT':
+                    // 	do_something_with_put($request);
+                    // 	break;
                 case "POST":
                     $parsedParams[$paramName] = $parseFunction(
-                        $_POST[$paramName]
+                        $_POST[$paramName] ?? null
                     );
                     break;
                 case "GET":
                     $parsedParams[$paramName] = $parseFunction(
-                        $_GET[$paramName]
+                        $_GET[$paramName] ?? null
                     );
                     break;
                 default:
@@ -236,6 +291,11 @@ class participo
         self::$message[$type] = (self::$message[$type] ?? "") . $message;
     }
 
+    // public static function htmlEchoMessages(){
+    //     echo(htmlRetMessage(participo::getMessages()));
+    //     self::$message = null;
+    // }
+
     /** check password for user
      *
      * @param string $loginName user who wants to get in
@@ -296,9 +356,7 @@ class participo
         return self::hasUserAttribute($userId, "isAdmin");
     }
 
-    public static function getUserId()
-    {
-    }
+    public static function getUserId() {}
 
     /** get current logged in users kids */
     public static function getKids($userId = null)
@@ -510,10 +568,10 @@ class AppCard
             ($this->link != null ? "</a>" : "") .
             ($this->imgUrl != null
                 ? '<img alt="' .
-                    $this->title .
-                    '" style="display:block;margin-left:auto;margin-right:auto;max-height:10vh;" class="responsive-img" src="' .
-                    $this->imgUrl .
-                    '" />'
+                $this->title .
+                '" style="display:block;margin-left:auto;margin-right:auto;max-height:10vh;" class="responsive-img" src="' .
+                $this->imgUrl .
+                '" />'
                 : "") .
             "<p>" .
             $this->description .
@@ -619,7 +677,7 @@ function loadMarkdownFile($fileName)
 {
     // load the whole file
     $fileText = file_get_contents($fileName);
-    // split at '---' to get ((),yamls,array)
+    // split at '---' to get ((),yaml,array)
     $fileParts = preg_split('/[\n]*[-]{3}[\n]/', $fileText, 3);
     // not all mdFiles have a yamlHeader, so the mdText can be at different indices
     $yaml = [];
diff --git a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/login.php b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/login.php
index eea6f35..b17d9ca 100644
--- a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/login.php
+++ b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/login.php
@@ -1,12 +1,10 @@
 <?php
 require_once 'config/participo.php';
+require_once $config['home'] . '/.local/cwsvJudo.config.php';
 
 require_once 'participoLib/participo.php';
 require_once 'participoLib/apiKey.php';
 
-require_once './local/dbConf.php';
-
-require_once $config['home'] . '/.local/cwsvJudo.config.php';
 
 $dbConnection = dbConnector::connect(
 	$cwsvJudoConfig['db']['host'],
@@ -14,9 +12,9 @@ $dbConnection = dbConnector::connect(
 	$cwsvJudoConfig['db']['user'],
 	$cwsvJudoConfig['db']['password']
 );
-
 // Check, if the login is already set. If so move to the main page (or the returnToUrl)
-if (isset($_SESSION['login'])) {
+if (isset($_SESSION) && isset($_SESSION['login'])) {
+	// @todo prevent self redirection
 	header('Location: http://' . ($_POST['returnToUrl'] ?? '.'), true, 301);
 }
 
diff --git a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/user.php b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/user.php
index 3e3db73..079a234 100644
--- a/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/user.php
+++ b/homepage/cwsvJudo/participo/cwsvjudo@bplaced/www/participo/user.php
@@ -19,7 +19,7 @@ dbConnector::connect(
 	$cwsvJudoConfig['db']['password']
 );
 
-participo::authentificate();
+participo::authenticate();
 $user = participo::sessionUser();
 $usersKids = getUsersKids(dbConnector::getDbConnection(), $_SESSION['user']['userId']);
 
diff --git a/homepage/cwsvJudo/participo/test/config.toml b/homepage/cwsvJudo/participo/test/config.toml
index 4352847..d69499e 100644
--- a/homepage/cwsvJudo/participo/test/config.toml
+++ b/homepage/cwsvJudo/participo/test/config.toml
@@ -4,3 +4,7 @@ password = "kodokan"
 
 [url]
 home = "http://127.0.0.1/participo"
+# home = "http://cwsvjudo.bplaced.net/participo"
+
+[settings]
+headless = true
diff --git a/homepage/cwsvJudo/participo/test/helper.py b/homepage/cwsvJudo/participo/test/helper.py
index 9166149..e67b843 100644
--- a/homepage/cwsvJudo/participo/test/helper.py
+++ b/homepage/cwsvJudo/participo/test/helper.py
@@ -14,10 +14,12 @@ class Participo:
     def __init__(self) -> None:
         from selenium.webdriver import Firefox, FirefoxOptions
 
-        options = FirefoxOptions()
-        options.add_argument("-headless")
-
         self.config = load_config()
+
+        options = FirefoxOptions()
+        if self.config["settings"]["headless"]:
+            options.add_argument("-headless")
+
         self.driver = Firefox(options=options)
 
         self.delay = 5
@@ -33,8 +35,20 @@ class Participo:
         self.driver.get(url=self.config["url"]["home"])
 
     def load_section(self, section: str):
+        from urllib3.exceptions import ReadTimeoutError
+
         section_url = "/".join((self.config["url"]["home"], section))
-        self.driver.get(url=section_url)
+        try:
+            self.driver.get(url=section_url)
+        except ReadTimeoutError as e:
+            logging.warning(
+                "\n".join(
+                    (
+                        f"TimeoutError loading {section} ({e} - {repr(e)})",
+                        f"- Check for missing resources on section/page {section}",
+                    )
+                )
+            )
 
     def login(self):
         credentials = self.config["credentials"]
diff --git a/homepage/cwsvJudo/participo/test/test_main.py b/homepage/cwsvJudo/participo/test/test_main.py
index e578a6d..052904d 100644
--- a/homepage/cwsvJudo/participo/test/test_main.py
+++ b/homepage/cwsvJudo/participo/test/test_main.py
@@ -27,7 +27,7 @@ class TestParticipo(unittest.TestCase):
                         expr=participo.check_for_xdebug_msgs(),
                         msg=f"php errors on section {section}",
                     )
-            
+
 
 if __name__ == "__main__":
     logging.basicConfig(level=logging.INFO)