May I ask what other plugins you're using, and for the most relevant ones, which versions of them? (Linked turns doesn't work in DTB without Battle Status Window, so I'll presume that and Battle Core are in use.)
As for releasing the original Jay's Journey here, don't think I haven't considered it. But I would only put it on itch.io if it was compatible with the official version of the RPG Maker 2000 RTP, and... well, let's not go into specifics, but it's not. You'd know why if you were a part of the RPG Maker scene during that time period. Updating it to work with the official RTP would require time and money (not a ton of money, but it's money I haven't spent.)