Fatal error: Uncaught Error: Class "OCP\EventDispatcher\Event" not found in /var/www/html/nextcloud/apps/files_sharing/lib/Event/BeforeTemplateRenderedEvent.php:20 Stack trace: #0 {main} thrown in /var/www/html/nextcloud/apps/files_sharing/lib/Event/BeforeTemplateRenderedEvent.php on line 20