If you have an opening after that, the ar0400.bcs is buggered likely. If you don't have an opening after that, the AR0400.are is likely buggered.
looks like the second.. there's no opening open.. I can see from NI what it's supposed to look like.. never mind.. I'll just use the console to change area. I can't see any mention of AR0400 in the chloe tp2, so.. *shrugs*