Fatal error: Uncaught Error: Class "ILIAS\GlobalScreen\Scope\Layout\Provider\AbstractModificationProvider" not found in /var/www/html/ilias/components/ILIAS/UICore/classes/Screen/PageContentProvider.php:40 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/UICore/classes/Screen/PageContentProvider.php on line 40