Fatal error: Uncaught Error: Interface "Symfony\Component\Mime\Header\HeaderInterface" not found in /home13/settlepos/restaurant.settlepos.com/vendor/symfony/mime/Header/AbstractHeader.php:22 Stack trace: #0 {main} thrown in /home13/settlepos/restaurant.settlepos.com/vendor/symfony/mime/Header/AbstractHeader.php on line 22