Fatal error: Uncaught Error: Call to undefined function Symfony\Component\EventDispatcher\trigger_deprecation() in /mnt/volume_lon1_01/backend/adminseppi/vendor/symfony/event-dispatcher/LegacyEventDispatcherProxy.php:16 Stack trace: #0 {main} thrown in /mnt/volume_lon1_01/backend/adminseppi/vendor/symfony/event-dispatcher/LegacyEventDispatcherProxy.php on line 16