Fatal error: Uncaught Error: Class "Symfony\Component\Serializer\Mapping\Loader\FileLoader" not found in /var/www/html/demo.ininli.ca/releases/18/vendor/symfony/serializer/Mapping/Loader/XmlFileLoader.php:25 Stack trace: #0 {main} thrown in /var/www/html/demo.ininli.ca/releases/18/vendor/symfony/serializer/Mapping/Loader/XmlFileLoader.php on line 25