Fatal error: Uncaught Error: Class "Symfony\Component\Notifier\Transport\RoundRobinTransport" not found in /home/dodom2/public_html/cgilink.biz/vendor/symfony/notifier/Transport/FailoverTransport.php:21 Stack trace: #0 {main} thrown in /home/dodom2/public_html/cgilink.biz/vendor/symfony/notifier/Transport/FailoverTransport.php on line 21