public function sendRequest()
    {
        try {
            if (mb_strlen($this->url) >= 9) {
                $response       = $this->useFileGetContents();
                $this->response = $response;

                return $response;
            }
        }
        catch (Exception $e) {
            $message = "Error: " . __CLASS__ . ": Please make sure to set a URL to fetch - Line: " . $e->getLine() . ' - Msg: ' . $e->getMessage();
            $this->debug->error(__FUNCTION__, $message);

            return $message;
        }

        return NULL;
    }