2 weird bugs

Please post a url.

https://air-pumps.ru/

Are you referring to the translation available popup that Google Chrome has?

I have in admin panel Translation avaible update in all browsers just checked IE, Edge, Chrome, FireFox

The first page shows this error.
https://air-pumps.ru/favicon.ico Failed to load resource: the server responded with a status of 404 (Not Found)

So you think this is favicon.ico problem? Where do I upload it on my site

What about update trnslations avaible?

Yes, I see that error you report. Please try
-deactivating all plugins to see if this resolves the problem. If this works, re-activate the plugins one by one until you find the problematic plugin(s).
-switching to the default theme to rule out any theme-specific problems.

Ive made favicon but still undefined:1 GET https://air-pumps.ru/undefined?1461786508853 404 (Not Found)

Tried disabling and enabling plugins still no luck

Try a different theme.

Support for your theme is at https://tishonator.com/contacts but they say support only for premium theme.

Alright any tips where I can find that GET thing in my theme?

What should I do with Translation update avaible in admin menu ?/?