Fatal error: Uncaught Error: Interface "ilAuthCredentials" not found in /var/www/html/ilias/components/ILIAS/Authentication/classes/Frontend/class.ilAuthFrontendCredentials.php:24 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Authentication/classes/Frontend/class.ilAuthFrontendCredentials.php on line 24