Fatal error: Uncaught Error: Interface 'Sonata\ClassificationBundle\Model\ContextInterface' not found in /home/lafaamicps/www/symfony/vendor/sonata-project/classification-bundle/Model/Context.php:14 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/sonata-project/classification-bundle/Model/Context.php on line 14