Fatal error: Uncaught Error: Class "Symfony\Component\Config\Loader\Loader" not found in C:\laragon\www\siesicis\ovh-sms\vendor\symfony\config\Loader\FileLoader.php:23 Stack trace: #0 {main} thrown in C:\laragon\www\siesicis\ovh-sms\vendor\symfony\config\Loader\FileLoader.php on line 23