Fatal error: Uncaught Error: Class "ilSubEnabledFormPropertyGUI" not found in /var/www/html/ilias/components/ILIAS/TestQuestionPool/classes/Form/class.ilClozeGapInputBuilderGUI.php:22 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/TestQuestionPool/classes/Form/class.ilClozeGapInputBuilderGUI.php on line 22