Bukkit

What steps will reproduce the problem?
1. I don't know.
2.
3.

What is the expected output? What do you see instead?
When I do any MobDisguise command I get the Internal Server Error message. I had this with something before, restarted it, and it worked, but that doesnt work for this.

What version of the product are you using?
uhm. The newest one? The default one you get/got on August 22

Do you have an error log of what happened?
No..?

Please provide any additional information below.
Nothing else to say, sadly.