Fatal error: Uncaught Error: Class 'Sonata\DoctrineORMAdminBundle\Filter\Filter' not found in /home/lafaamicps/www/symfony/vendor/sonata-project/doctrine-orm-admin-bundle/Filter/CallbackFilter.php:16 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/sonata-project/doctrine-orm-admin-bundle/Filter/CallbackFilter.php on line 16