Fatal error: Uncaught Error: Class "Symfony\Component\Config\Loader\Loader" not found in /home/helpdatafirst/public_html/helpappold/vendor/symfony/routing/Loader/ObjectLoader.php:23 Stack trace: #0 {main} thrown in /home/helpdatafirst/public_html/helpappold/vendor/symfony/routing/Loader/ObjectLoader.php on line 23