Fatal error: Uncaught Error: Class "ILIAS\GlobalScreen\Scope\Layout\Provider\AbstractModificationProvider" not found in /var/www/html/ilias/components/ILIAS/Init/classes/Provider/StartUpModificationProvider.php:28 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Init/classes/Provider/StartUpModificationProvider.php on line 28