Fatal error: Uncaught Error: Class 'Symfony\Component\Mailer\Transport\Smtp\EsmtpTransport' not found in /home/users/00/3c/21/home/www/vendor/symfony/amazon-mailer/Transport/SesSmtpTransport.php:21 Stack trace: #0 {main} thrown in /home/users/00/3c/21/home/www/vendor/symfony/amazon-mailer/Transport/SesSmtpTransport.php on line 21