Fatal error: Uncaught Error: Interface "ILIAS\Awareness\User\Provider" not found in /var/www/html/ilias/components/ILIAS/Contact/BuddySystem/classes/class.ilAwarenessUserProviderContactRequests.php:29 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Contact/BuddySystem/classes/class.ilAwarenessUserProviderContactRequests.php on line 29