I had a similar crash when I used to run a server.. it was from the counters being 0
So I added this line... to make sure it has counters :p (this was from a long time ago though)
https://github.com/Natedog2012/Serve...bot.cpp#L16233
It was caused when a Bot with PETS zoned to a new zone.. and the pet has a debuff with counters on it, the zone would crash.. (if there was a class that could cure in the party)