Fatal error: Uncaught Error: Class "ilAuthFrontendCredentials" not found in /var/www/html/ilias/components/ILIAS/LTIProvider/classes/InternalProvider/class.ilAuthFrontendCredentialsLTI.php:27 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/LTIProvider/classes/InternalProvider/class.ilAuthFrontendCredentialsLTI.php on line 27