Fatal error: Uncaught Error: Class "OCP\EventDispatcher\Event" not found in /home/tzuovhm/tzuovhm/nextcloud/lib/public/AppFramework/Http/Events/BeforeTemplateRenderedEvent.php:20 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/nextcloud/lib/public/AppFramework/Http/Events/BeforeTemplateRenderedEvent.php on line 20