Tawk to and my site

Hello! Could you help me?
I have some website versions

and other

And I would like to use different chat version on different languages my website.

But I can’t choose which version Tawk.to my website has to use.
I set up language in Talk.to , and this doesn’t help me.
If I choose language in CF /ru-ru and /en-us and do some settings, I always see English language on my websites.

I talked to the Tawk.to support, and they said that I should do this setting in CF.

What shoul I do?

I so sorry, but I can’t upload images because I’m new user (((