My understanding is that the last version of Goals Edition made a change to the formatting that broke compatibility with the other HITDB script. Tubedogg did include instructions
here for reverting that change, in case you ever want to go back to the normal HITDB, but idk how well that works (it was a while ago and things may have changed since then.) But I would think that you would need to do that first, to go back to the classic version of HITDB, before you could even install HITDB Mk II (since Mk II also makes changes to the formatting and is dependent on the formatting of the original HITDB for it to convert properly.)