Fatal error: Uncaught Error: Class "OCP\EventDispatcher\Event" not found in /home/tremblinlu/MyNextCloud/nextcloud/lib/public/Security/FeaturePolicy/AddFeaturePolicyEvent.php:37 Stack trace: #0 {main} thrown in /home/tremblinlu/MyNextCloud/nextcloud/lib/public/Security/FeaturePolicy/AddFeaturePolicyEvent.php on line 37