Battery plugged 4 moths ago ???

Since some time (idk when I saw this bug first time, its possible that it was about new year) my formula shows me after plugging cable that I plugged it 4 moths ago (some time earlier it shows me 5 months, what a progress...). There I include screenshot:

Mmm, looks like the battery DB might have been corrupted, did you try to reinstall from scratch?

Reinstall from what?