Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Extension\Extension" not found in /home/yrdsb11w3creativ/public_html/109/vendor/symfony/dependency-injection/Extension/AbstractExtension.php:25 Stack trace: #0 {main} thrown in /home/yrdsb11w3creativ/public_html/109/vendor/symfony/dependency-injection/Extension/AbstractExtension.php on line 25