Fatal error: Uncaught Error: Class 'Twig_Extension' not found in /home/aucoeurdgw/dev/src/PrestaShopBundle/Twig/LayoutExtension.php:37 Stack trace: #0 {main} thrown in /home/aucoeurdgw/dev/src/PrestaShopBundle/Twig/LayoutExtension.php on line 37