Fatal error: Uncaught Error: Class "Symfony\Component\DependencyInjection\Loader\FileLoader" not found in /home/alotaishan/public_html/ots001/vendor/symfony/dependency-injection/Loader/XmlFileLoader.php:38 Stack trace: #0 {main} thrown in /home/alotaishan/public_html/ots001/vendor/symfony/dependency-injection/Loader/XmlFileLoader.php on line 38