public function useGlobalFor($language)
    {
        $fileName = $this->buildConfigFilePath('myconfig-' . $language . '.php');
        if (file_exists($fileName)) {
            if (!@unlink($fileName)) {
                throw new ShopgateLibraryException(
                    ShopgateLibraryException::CONFIG_READ_WRITE_ERROR,
                    'Error deleting configuration file "' . $fileName . "'."
                );
            }
        }
    }