Fatal error: Uncaught Error: Class 'Twig_Extensions_Grammar' not found in C:\xampp\htdocs\ApiSigestWin\1.0\vendor\twig\extensions\lib\Twig\Extensions\Grammar\Switch.php:15 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ApiSigestWin\1.0\vendor\twig\extensions\lib\Twig\Extensions\Grammar\Switch.php on line 15