Fatal error: Uncaught Error: Interface 'Symfony\Component\EventDispatcher\EventSubscriberInterface' not found in /var/www/typo3/vendor/symfony/mailer/EventListener/EnvelopeListener.php:24 Stack trace: #0 {main} thrown in /var/www/typo3/vendor/symfony/mailer/EventListener/EnvelopeListener.php on line 24