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