Fatal error: Uncaught Error: Class 'Twig_Extension' not found in /home/cooplafobq/newplanning/vendor/ornicar/gravatar-bundle/Ornicar/GravatarBundle/Twig/GravatarExtension.php:11 Stack trace: #0 {main} thrown in /home/cooplafobq/newplanning/vendor/ornicar/gravatar-bundle/Ornicar/GravatarBundle/Twig/GravatarExtension.php on line 11