Fatal error: Uncaught Error: Class 'Symfony\Component\Mime\Part\AbstractPart' not found in /home/huionetr/public_html/vendor/symfony/mime/Part/SMimePart.php:19 Stack trace: #0 {main} thrown in /home/huionetr/public_html/vendor/symfony/mime/Part/SMimePart.php on line 19