Fatal error: Uncaught Error: Interface "Symfony\Component\Mailer\Exception\ExceptionInterface" not found in /srv/www/sites/public/starter-cms/vendor/symfony/mailer/Exception/LogicException.php:17 Stack trace: #0 {main} thrown in /srv/www/sites/public/starter-cms/vendor/symfony/mailer/Exception/LogicException.php on line 17