if (!$config['exists'])
        {
            if ($config['legacyExists'])
            {
                echo 'The site is currently being upgraded. Please try again later.';
                exit;
            }
            else if (\XF\Util\File::installLockExists())
            {
                echo "Couldn't load src/config.php file.";
                exit;
            }
            else
            {
                header('Location: install/index.php');
                exit;
            }
        }