Bukkit

What steps will reproduce the problem?
1.click on buy house sign
1.5:/house confirm
2.takes money
3.then says that there is no such command

What is the expected output? What do you see instead?
expect that they be able to buy houses
steals money

What version of the product are you using?
latest

Do you have an error log of what happened?
no

Please provide any additional information below.