Fatal error: Uncaught Error: Interface "ILIAS\UI\Implementation\Render\RendererFactory" not found in /var/www/html/ilias/components/ILIAS/UI/src/Implementation/Render/DefaultRendererFactory.php:31 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/UI/src/Implementation/Render/DefaultRendererFactory.php on line 31