Fatal error: Uncaught Error: Class "Symfony\Component\EventDispatcher\GenericEvent" not found in /home/ally/mittondev/temp/nextcloud/lib/private/EventDispatcher/GenericEventWrapper.php:32 Stack trace: #0 {main} thrown in /home/ally/mittondev/temp/nextcloud/lib/private/EventDispatcher/GenericEventWrapper.php on line 32