Deprecated Darkstar fourms

So I just run my client/server on the same machine, and have been personally leveling blue mage. I use bludgeon just about every battle, and just very recently everytime I use it it has been crashing the game server. How do I handle trying to fix this?

Update: Seems to be just on the Snipper crabs on Qufim island that cause this error

Need a dump or more info.