Fatal error: Uncaught Error: Class "Symfony\Contracts\EventDispatcher\Event" not found in /home/ashraf.helioho.st/waken.helioho.st/user/plugins/email/vendor/symfony/mailer/Event/MessageEvent.php:23 Stack trace: #0 {main} thrown in /home/ashraf.helioho.st/waken.helioho.st/user/plugins/email/vendor/symfony/mailer/Event/MessageEvent.php on line 23