Bukkit

What steps will reproduce the problem?
1. Create the buy house sign with correct class and number
2. Try to buy it by richt-clicking  on the sign
3. It gives a message "type /house confirm to [...]"
4. Do /house confirm

What is the expected output? What do you see instead?
I expect that the player is able to buy the house

What version of the product are you using?
1.6.4.1

Do you have an error log of what happened?
http://pastebin.com/BWYX0t4E

Please provide any additional information below.
The /house confirm command works when you are selling the house, but it doesnt work when you are buying the house, it just says that its an Unknown Command.

I have exactly same problem. We need help. :)

I have fixed this issue in my version. This command had issues due to the builder's name being blank when trying to give money to him, it would throw a nullpointerexception. The way I fixed this was http://hastebin.com/nuqegativu.avrasm