Fatal error: Uncaught Error: Class "Symfony\Component\Mailer\Transport\AbstractTransport" not found in C:\xampp\htdocs\rampcheckv3\vendor\symfony\mailer\Transport\Smtp\SmtpTransport.php:33 Stack trace: #0 {main} thrown in C:\xampp\htdocs\rampcheckv3\vendor\symfony\mailer\Transport\Smtp\SmtpTransport.php on line 33