Fatal error: Uncaught Error: Class "Symfony\Component\Mailer\Transport\Smtp\SmtpTransport" not found in /home/sustaina/public_html/vendor/symfony/mailer/Transport/Smtp/EsmtpTransport.php:27 Stack trace: #0 {main} thrown in /home/sustaina/public_html/vendor/symfony/mailer/Transport/Smtp/EsmtpTransport.php on line 27