Lol, so I'm a youngster....of 44 in the current company
I too have installed the bonfire mod....and am loving it.
I have a few problems with inaccessable cottages/houses, a bunch of birds on a side Island that I can't talk too. But that's not game-breaking.
I have the same problem with Fynnen (I think, will look it up when I'm at home) : I also crash whenever I try to sail to it from any other Island....and that's a major bummer