Fatal error: Uncaught Error: Interface "ILIAS\UI\Component\Input\Container\Container" not found in /var/www/html/ilias/components/ILIAS/UI/src/Component/Input/Container/ViewControl/ViewControl.php:29 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/UI/src/Component/Input/Container/ViewControl/ViewControl.php on line 29