What does 'Your criteria doesn't match any questions' mean. I cannot answer questions since this appeared?

I'm European and I found a workaround, which is annoying anyhow: You can get signed into Yahoo by pretending you're from different country. All you need to have is a mail address with the respective country's ccTLD to make Yahoo send you a recovery code.

Or, if you're a Yahoo!Answers member, use one of your "best answer" notification emails, and you have a back door right back in.

What Yahoo would like best, of course, is to make you shut down your ad blockers. But, seriously, no. Forget it.