Fatal error: Uncaught Error: Class "ilException" not found in /var/www/html/ilias/components/ILIAS/Exercise/Submission/class.ilExcTooManyFilesSubmittedException.php:21 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Exercise/Submission/class.ilExcTooManyFilesSubmittedException.php on line 21