Fatal error: Uncaught Error: Class "Symfony\Component\Mailer\Transport\Smtp\SmtpTransport" not found in /home/ligueky/www/km/dev/backend/vendor/symfony/mailer/Transport/Smtp/EsmtpTransport.php:29 Stack trace: #0 {main} thrown in /home/ligueky/www/km/dev/backend/vendor/symfony/mailer/Transport/Smtp/EsmtpTransport.php on line 29