Call to undefined method Phalcon\Db\Result\Pdo::nextRowSet()

Hi,everyone! I used Phalcon in my project. It had worked well until I moved my project from one server to another and updated Phalcon to the latest version. The following code which had worked very well throwed a fatal error.

    <?php
        $sql = "CALL p_get_question(".$question_id.",'".$answer_orderby."');";
        $myModel = new question();
        $query=$myModel->getReadConnection()->query($sql);

        $question_result=$query->fetchAll();

        if(count($question_result)!=1){
            $this->response->setStatusCode(404,"Not Found");
            $this->view->disable();
        }else{
            $this->view->question=$question_result[0];
            $query->nextRowSet();
            $this->view->question_supplement=$query->fetchAll();

         }  
         ?>

And the error:

    Fatal error: Call to undefined method Phalcon\Db\Result\Pdo::nextRowSet() in D:\visual studio projects\UtillYou\app\controllers\QuestionController.php on line 25

Anybody can help me? Thanks!