The way I deal with similar errors (I've had both the taurus one and the centaur one), is to go into the expansionsetup.gd file and ctrl+f whatever the word is (in your case, taurus). Usually there'll be something like "person.genealogy.taurus" where there should be "person.genealogy.cow", or "person.genealogy.centaur" where there should be "person.genealogy.horse".
Do correct me if that's not the issue here though.
@Lucilya You've got it right. That's the fix, and I thought I purged them all. I can't find where I've still got that in the patches or main files.
@slippa666 Can you try Ctrl+F for .taurus in expansionsetup.gd as Lucilya points out, and see if you can find any .taurus that needs to be .cow? If so, please replace it and see if that helps.
