Fatal error: Uncaught Error: Class "Symfony\Component\Mailer\Exception\TransportException" not found in D:\xampp\htdocs\pimcore\my-project\vendor\symfony\mailer\Exception\UnexpectedResponseException.php:14 Stack trace: #0 {main} thrown in D:\xampp\htdocs\pimcore\my-project\vendor\symfony\mailer\Exception\UnexpectedResponseException.php on line 14