Fatal error: Uncaught Error: Interface "ILIAS\Cache\Container\Request" not found in /var/www/html/ilias/components/ILIAS/MainMenu/classes/Items/class.ilMMItemRepository.php:39 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/MainMenu/classes/Items/class.ilMMItemRepository.php on line 39