Why is not the new Google Search Console reading my sitemap?

I have the following problem:
I can not send a sitemap to Google Search Console lately.
Let me give you an example:
https://ru.azrhymes.com/static/sitemaps/ru/sitemap-main-1.xml.
(Examiner says ok)

And Google says "Sitemap could not be read" Explanation: "General HTTP error".

What am I doing wrong?
(I use nginx.)