Fatal error: Uncaught Error: Class "Symfony\Component\Mime\Header\UnstructuredHeader" not found in /var/www/live/demo7.thesynergate.com/tollplaza-api/vendor/symfony/mailer/Header/MetadataHeader.php:19 Stack trace: #0 {main} thrown in /var/www/live/demo7.thesynergate.com/tollplaza-api/vendor/symfony/mailer/Header/MetadataHeader.php on line 19