Fatal error: Uncaught Error: Class "Symfony\Component\Mailer\Exception\TransportException" not found in /home2/santhos2/public_html/demo-ecom.firstmatrix.in.net/vendor/symfony/mailer/Exception/UnexpectedResponseException.php:14 Stack trace: #0 {main} thrown in /home2/santhos2/public_html/demo-ecom.firstmatrix.in.net/vendor/symfony/mailer/Exception/UnexpectedResponseException.php on line 14