Fatal error: Uncaught Error: Class "Symfony\Component\Mailer\Transport\RoundRobinTransport" not found in /home/bimmertest/BookStack/vendor/ssddanbrown/symfony-mailer/Transport/FailoverTransport.php:19
Stack trace:
#0 {main}
thrown in /home/bimmertest/BookStack/vendor/ssddanbrown/symfony-mailer/Transport/FailoverTransport.php on line 19