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