Can not request a re-review of a pull request

Hi everyone!

I have a problem. I can not request re-review of a pull request. I’m trying to press the button “re-request review” and all that I got is nothing happening on the page. I looked at the network debugger and noticed that I got the error:

Request URL: GET
The response is status code 404.

Other requests are finished with status 200.

P.S. Can not give the link on this repo because it’s private.
P.P.S. If it would be needed I’ll give access and give the link on PR.