Hello, so im getting this error: Cannot write to palette file C:/Program Files/Krita (x64)/share/apps/calligra/palettes/concept-cookie.gpl. Maybe it is read-only.
when Im trying to use the color picker. I dont know what I did, was working and it just started giving me this error.

Check if the "Add to palette" checkbox is checked in the tool options. Or check if the files existes and is writeable.