Fatal error: Uncaught Error: Class "Symfony\Component\Mime\Header\UnstructuredHeader" not found in /home/ashraf.helioho.st/waken.helioho.st/user/plugins/email/vendor/symfony/mailer/Header/MetadataHeader.php:19 Stack trace: #0 {main} thrown in /home/ashraf.helioho.st/waken.helioho.st/user/plugins/email/vendor/symfony/mailer/Header/MetadataHeader.php on line 19