Exception: Unable to deserialize packet with pid 3

We hope to have this resolved very soon.

This occurs if you get more than 6 or so tiles away from a monster that has an active trap (such as in the Sewers) and then the trap goes off. We're working on a fix, but in the meantime try to kill the monsters who lay traps (the Pyromancer/poison version ones) before they get far away from you.