Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag" not found in /home/ntpcbgtpp/public_html/mat1/vendor/symfony/dependency-injection/ParameterBag/ContainerBag.php:19 Stack trace: #0 {main} thrown in /home/ntpcbgtpp/public_html/mat1/vendor/symfony/dependency-injection/ParameterBag/ContainerBag.php on line 19