Doesn't seem to work on mobile

It works for a while, but after some time it stops working. I press the button to try to access the extension and it does nothing.

The newest update stopped it from working. So I went to the previous update and it worked for a while but it's inconsistent with maintaining desired video quality

Fint alternativ til "Enhancer for YouTube™" - er langt enklere, samt har nogle enkelte funktioner eksklusivt fra "Enhancer for YouTube™", som automatisk-tilføjet undertekster, når de er tilgængelige, samt annotationer fra - og automatisk udvidelse af beskrivelse.

It doesn't work...

Very useful extension, but I deduct 2 stars because

1. The mobile version doesn't work
2. The extension is licensed under GPL3, but where is the source code?

It worked for a time, doesn't anymore, I tried every option, and tried different fixes. But nothing worked.