How to insert a webcam broadcast from another site?

Question

JavaScript

I'm trying to get a video stream from here
gesh.info/webcam
here
https://selftrips.ru/strany-i-mesta/sssr/rossiya/v...
I just copy a piece of code to my pages (styles and scripts) It
works for a while, then it stops (does not show the stream). Apparently the point is that the token changes in the code.
I'm trying to parse and embed a piece of code with a token on the site, but it still doesn't work right away.
Why is this happening and is there any way to overcome it?
PS
I tried to apply to get official permission, all with a code and so on - no answer, no hello.