Fatal error: Uncaught Error: Class "ILIAS\GlobalScreen\Scope\MainMenu\Provider\AbstractStaticMainMenuProvider" not found in /var/www/html/ilias/components/ILIAS/Calendar/classes/Provider/CalendarMainBarProvider.php:13 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Calendar/classes/Provider/CalendarMainBarProvider.php on line 13