Fatal error: Uncaught Error: Interface "Symfony\Component\Mime\Header\HeaderInterface" not found in D:\NTG_App\www\Northern_Corporation_Ltd\vendor\symfony\mime\Header\AbstractHeader.php:21 Stack trace: #0 {main} thrown in D:\NTG_App\www\Northern_Corporation_Ltd\vendor\symfony\mime\Header\AbstractHeader.php on line 21