weird world edit error

[edwardo1010]

weird error that happened when i used a world edit command. ( //set 1 )

the command was successful, but when i went to look over the logs i found this just before i logged off the server

http://pastebin.com/5S1aDSLH <- world edit induced error Line# 333 and further

see the world edit command did work im guessing my permissions file was working

http://pastebin.com/g1adVpCQ <- permissions file

running bukkit: CB 1.1

plugin: PermissionsBukkit 1.6