Fatal error: Uncaught Error: Class 'Symfony\Component\Mailer\Transport\AbstractTransportFactory' not found in /home/supporta/public_html/vendor/symfony/mailgun-mailer/Transport/MailgunTransportFactory.php:22 Stack trace: #0 {main} thrown in /home/supporta/public_html/vendor/symfony/mailgun-mailer/Transport/MailgunTransportFactory.php on line 22