Fatal error: Uncaught Error: Interface 'Symfony\Component\Mailer\Transport\Smtp\Auth\AuthenticatorInterface' not found in /var/www/typo3/vendor/symfony/mailer/Transport/Smtp/Auth/CramMd5Authenticator.php:21 Stack trace: #0 {main} thrown in /var/www/typo3/vendor/symfony/mailer/Transport/Smtp/Auth/CramMd5Authenticator.php on line 21