Fatal error: Uncaught Error: Class 'Twig_Extension' not found in /home/lafaamicps/www/symfony/vendor/knplabs/knp-menu/src/Knp/Menu/Twig/MenuExtension.php:7 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/knplabs/knp-menu/src/Knp/Menu/Twig/MenuExtension.php on line 7