Cascade detectMultiScale shows error while running

that exception is thrown when I run this code:

        auto axes = CvPlot::plotImage(clone);
        cv::Mat mat = axes.render(clone.size().width, clone.size().height);
        CvPlot::show(title, axes);
        waitKey(0);

This is a graph library wrapper written for openCV , but this exception does not stop the program execution.

But thanks for your help. It looks like something at my hardware causes the error probably. Because I used to run this code on another computer.

Thanks
Daniel