Call to undefined method Error::save()

Hi, I have this error when I try to save data with the model "Error", other models like "member" save fine, but this always return error. Someone to help? Error: Call to undefined method Error::save()

        if (!$member->save()) {

            foreach ($member->getMessages() as $message) {

                $error = new Error();
                $error->Message = $message->getMessage();
                $error->Controller = $this->dispatcher->getControllerName();
                $error->Action = $this->dispatcher->getActionName();

                $error->save();  // here is the error
            }

        } else {

            return json_encode($this->response);
            exit;
        }