Fatal error: Uncaught Error: Class "ilTable2GUI" not found in /var/www/html/ilias/components/ILIAS/Exercise/Submission/class.ilExerciseSubmissionTableGUI.php:22 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Exercise/Submission/class.ilExerciseSubmissionTableGUI.php on line 22