Fatal error: Uncaught Error: Interface 'Symfony\Component\EventDispatcher\EventDispatcherInterface' not found in /home/mattiapa/cloud2.mprnl.fr/owncloud/lib/composer/symfony/event-dispatcher/ImmutableEventDispatcher.php:19 Stack trace: #0 {main} thrown in /home/mattiapa/cloud2.mprnl.fr/owncloud/lib/composer/symfony/event-dispatcher/ImmutableEventDispatcher.php on line 19