I haven't encountered error like this before. Are you sure NWN data files (*.bif) are not corrupted - can you play the game normally? Could you post a screenshot of CC's settings window, please?
Huh, odd. Just went and played a bit to make sure, my game is half-broken. I can play modules just fine in multiplayer by using NWNX2 to load up a local server, but trying to play them directly in SP mode crashes my game every time.
CC is configured correctly as far as I know. NWN Directory is set to my NWN install (C:\games\Neverwinter Nights Diamond Edition\), I have prc_2das.hak, prc_race.hak, and prc_textures.hak selected for hak files, I have prc_consortium.tlk selected for TLK files and also have use default TLK checked.
I suppose worst case I can wipe the whole install and start over, see if the problem still manifests itself.
Edit: Wiped the whole install, reinstalled. Works fine now. That said, there is a bug with the PRC server pack, it's installing a higher version of nwnx_func.dll that causes the server to crash on load. Downgrading to 0.89 fixes it.
-O