Got error when trying to download video. Didn't work

doesnt work

I gave it a five stars previously, but it doesn't work anymore. However it is the case with all the YouTube Downloader add-ons that I tried lately. So it is something YouTube changed, and it appears difficult to defeat. I will give it five stars again when it works again.

1 option only (MP4) and can't get link to IDM

Does not work.

Doesn't work.