ReactCam with WordPress 5.5

I recently installed ReactCam, uploaded my first webcam image 20200823.jpg into ../uploads/webcam/ and inserted the shortcode as described into a post.

But it only shows a broken image. In the dev console I have found a typeError:

Uncaught TypeError: React.createClass is not a function

I have seen that you didn’t tested it against 5.5 but could you please tell me if it is compatible?

Thx for your answer!