Fatal error: Uncaught Error: Class 'Symfony\Component\EventDispatcher\Event' not found in /home/tbadigital/eventos/vendor/welp/mailchimp-bundle/src/Event/WebhookEvent.php:10 Stack trace: #0 {main} thrown in /home/tbadigital/eventos/vendor/welp/mailchimp-bundle/src/Event/WebhookEvent.php on line 10