Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in /users/quirl/www/filemanager/spark/protected/vendor/symfony/mailer/EventListener/EnvelopeListener.php:24 Stack trace: #0 {main} thrown in /users/quirl/www/filemanager/spark/protected/vendor/symfony/mailer/EventListener/EnvelopeListener.php on line 24