Fatal error: Uncaught Error: Class 'AppBundle\Form\Type\MailPreviewType' not found in /home/cgenial/sandbox.cgenial.org/var/cache/prod/ContainerR50tdjz/getMailPreviewTypeService.php:8 Stack trace: #0 {main} thrown in /home/cgenial/sandbox.cgenial.org/var/cache/prod/ContainerR50tdjz/getMailPreviewTypeService.php on line 8