Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DependencyInjection\Extension' not found in /home/phprplacein/public_html/vendor/symfony/framework-bundle/DependencyInjection/FrameworkExtension.php:34 Stack trace: #0 {main} thrown in /home/phprplacein/public_html/vendor/symfony/framework-bundle/DependencyInjection/FrameworkExtension.php on line 34