Fatal error: Uncaught Error: Interface "ilConditionControllerInterface" not found in /var/www/html/ilias/components/ILIAS/Category/classes/class.ilCategoryConditionController.php:26 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Category/classes/class.ilCategoryConditionController.php on line 26