On every submission I get Ooops! Something has broken down in Codeforces page. Example problem that I've tried. Even if I submit solutions to problems that I've already solved before. I've tried multiple browsers: Brave, Chromium, Firefox. At the same time I see some other people having their problems judged.

cc: MikeMirzayanov

P.S. I couldn't find bug report option, so had to write a blog for that.

UPD: The issue is resolved shortly after posting this blog.