looks like your themes addon has lots of errors, but probably not causing the crashing
you're loading the static shape bedroom and earth, are you sure you need this for an island fort war?
it's attempting to load gamemode rampage and blockheads ruin xmas into your custom gamemode and then ignoring them
last thing loaded is event_targetevents, probably crashes on event_speeds
are you sure it actually crashes, and not just freezes for a bit while loading?