Fatal error: Uncaught Error: Class "Symfony\Component\Mime\Header\UnstructuredHeader" not found in /home/d2ob/public_html/7ayz.d2ob.com/vendor/symfony/mailer/Header/TagHeader.php:19 Stack trace: #0 {main} thrown in /home/d2ob/public_html/7ayz.d2ob.com/vendor/symfony/mailer/Header/TagHeader.php on line 19