Fatal error: Uncaught Error: Interface "Symfony\Component\Mailer\Transport\Smtp\Auth\AuthenticatorInterface" not found in /srv/www/sites/public/laura/vendor/symfony/mailer/Transport/Smtp/Auth/CramMd5Authenticator.php:21 Stack trace: #0 {main} thrown in /srv/www/sites/public/laura/vendor/symfony/mailer/Transport/Smtp/Auth/CramMd5Authenticator.php on line 21