Fatal error: Uncaught Error: Class 'Symfony\Component\DependencyInjection\Compiler\MergeExtensionConfigurationPass' not found in /homepages/44/d766447797/htdocs/www/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Compiler/PassConfig.php:40 Stack trace: #0 /homepages/44/d766447797/htdocs/www/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Compiler/Compiler.php(30): Symfony\Component\DependencyInjection\Compiler\PassConfig->__construct() #1 /homepages/44/d766447797/htdocs/www/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/ContainerBuilder.php(327): Symfony\Component\DependencyInjection\Compiler\Compiler->__construct() #2 /homepages/44/d766447797/htdocs/www/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/ContainerBuilder.php(575): Symfony\Component\DependencyInjection\ContainerBuilder->getCompiler() #3 /homepages/44/d766447797/htdocs/www/classes/controller/FrontController.php(1964): Symfony\Component\DependencyInjection\ContainerBuilder->compile() #4 /homep in /homepages/44/d766447797/htdocs/www/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Compiler/PassConfig.php on line 40