Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Kernel\AbstractKernel" not found in /home2/roofonli/public_html/residential.roof-online.com/vendor/symfony/http-kernel/Kernel.php:33 Stack trace: #0 {main} thrown in /home2/roofonli/public_html/residential.roof-online.com/vendor/symfony/http-kernel/Kernel.php on line 33