There looks to be an issue with one of the AW2 NPCs trying to attack a zombie and it causes a crash.

http://pastebin.com/4rkMeBe9

This is being removed from a few servers that use our mod pack - Resonant Rise or with Project Flux

Actually the crash report spots a zombie killing an NPC.
This is a craftbukkit critical error.
Thankfully it can be caught on AW2 side.

Alright cool. I will let them know about this. ^_^

Thank you!