Fatal error: Uncaught Error: Class 'Sonata\DoctrineORMAdminBundle\Filter\Filter' not found in /home/lafaamicps/www/symfony/vendor/sonata-project/doctrine-orm-admin-bundle/Filter/BooleanFilter.php:17 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/sonata-project/doctrine-orm-admin-bundle/Filter/BooleanFilter.php on line 17