Fatal error: Uncaught Error: Class "ILIAS\FileUpload\Handler\AbstractCtrlAwareUploadHandler" not found in /var/www/html/ilias/components/ILIAS/File/classes/Icons/class.ilIconUploadHandlerGUI.php:38 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/File/classes/Icons/class.ilIconUploadHandlerGUI.php on line 38