Fatal error: Uncaught Error: Interface "ilCtrlBaseClassInterface" not found in /var/www/html/ilias/components/ILIAS/User/classes/Profile/class.ilPublicUserProfileGUI.php:31 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/User/classes/Profile/class.ilPublicUserProfileGUI.php on line 31