Fatal error: Uncaught Error: Class "OCA\Talk\Events\ASystemMessageSentEvent" not found in /home/tzuovhm/tzuovhm/apps_/spreed/lib/Events/BeforeSystemMessageSentEvent.php:11 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps_/spreed/lib/Events/BeforeSystemMessageSentEvent.php on line 11