Fatal error: Uncaught Error: Class "Symfony\Component\Mime\Exception\RfcComplianceException" not found in /opt/lampp/htdocs/forum/flarum/vendor/symfony/mime/Exception/AddressEncoderException.php:17 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/forum/flarum/vendor/symfony/mime/Exception/AddressEncoderException.php on line 17