Fatal error: Uncaught Error: Class 'Sonata\NotificationBundle\Iterator\MessageManagerMessageIterator' not found in /home/lafaamicps/www/symfony/vendor/sonata-project/notification-bundle/Iterator/ErroneousMessageIterator.php:22 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/sonata-project/notification-bundle/Iterator/ErroneousMessageIterator.php on line 22