I am aware about the video titles being translated again and made a fix for this in v2.22.2.
But it needs to be manually approved by Mozilla. It can take a few days to a week for this, and I can't do anything about it.
If you can't wait, you can still manually install the latest update from the add-on's github.

And NO, it did not "Stopped working 2 weeks ago".
Only translated titles are back right now, because of a YouTube update. Everything else still works (audio, descriptions ...). Please do not mislead people with wrong comment.