Sorry to hear that's happening! For whatever it's worth, I'm on Ventura 13.0, on a MacBook with pan M1 Pro, and Dendron's still working okay. So I don't think it's just about being on Ventura.
I don't know what that message is about exactly, but I'm guessing it wants either a "true" or "false" after "publishing" or "enableSiteLastModified"?
Can you get to where you can try the "Dendron: Doctor" command?