Fatal error: Uncaught Error: Interface "ILIAS\UI\Component\Layout\Alignment\Horizontal\Horizontal" not found in /var/www/html/ilias/components/ILIAS/UI/src/Component/Layout/Alignment/Horizontal/DynamicallyDistributed.php:28 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/UI/src/Component/Layout/Alignment/Horizontal/DynamicallyDistributed.php on line 28