Lua Challenge: the Catastrophes plugin

[DiamondToaster]

Aww, I've got three fun ones that I was gonna submit.

EDIT: I did find the problem, I just can't seem to find where it went wrong though.

EDIT #2: I DID IT. The answer hit me like a brick. The cWorld:DoWithEntityByID() was returning nil references, thus Entity:GetPosY() would return nil and occasionally crash the server if an operation was done on it. I fixed it using cWorld:DoWithEntityInBox() instead. Whoever came up with that idea, you are a lifesaver.