Fatal error: Uncaught Error: Class "Symfony\Component\Mailer\Transport\AbstractTransport" not found in C:\laragon\www\bookstack\vendor\ssddanbrown\symfony-mailer\Transport\SendmailTransport.php:34 Stack trace: #0 {main} thrown in C:\laragon\www\bookstack\vendor\ssddanbrown\symfony-mailer\Transport\SendmailTransport.php on line 34