Fatal error: Uncaught Error: Class 'Symfony\Component\Mime\Part\AbstractPart' not found in D:\xampp7\htdocs\www\nbkm\show_pe\vendor\symfony\mime\Part\AbstractMultipartPart.php:19 Stack trace: #0 {main} thrown in D:\xampp7\htdocs\www\nbkm\show_pe\vendor\symfony\mime\Part\AbstractMultipartPart.php on line 19