Fatal error: Uncaught Error: Class 'Symfony\Component\Mailer\Transport\AbstractTransport' not found in /home/nextgenc/shieldlink.app/inventory/vendor/symfony/mailer/Transport/NullTransport.php:21 Stack trace: #0 {main} thrown in /home/nextgenc/shieldlink.app/inventory/vendor/symfony/mailer/Transport/NullTransport.php on line 21