Bukkit

What steps will reproduce the problem?
1.I put this permission on normal users group.
    - easytrading.trade
2.I gonfigure the plugin yml file and set the blacklisted items in many ways.
3.The items temopraly dissapairs, ignore the blacklist or disconect one user.

What is the expected output? What do you see instead?
The blaclist of items are ignored
Example Cases:
- "itemid:398 subid: name:&cZanahoria_Dorada" :The console displays an error and the item dissapair at the moment of put in the cloud.
- "itemid:363 name:&cCarne_Cruda": Somethimes the item (in this case raw beef) an other items dissapairs when put them in the cloud, sometimes the blacklisted item don't being trade and sometimes he did
- "itemid:363 subid: 0 name:&cCarne_Cruda" : The Blaclisted item is completely ignored and being can trade

What version of the product are you using?
My server is 1.7.2, and the plugin is the latest version, thanks

Do you have an error log of what happened?

Please provide any additional information below.
Sometimes the console display an error, sometimes only the items dissapairs at the moment of puting in the cloud. Thanks, I'm from México, excuse my english.

Hello. Thanks for your ticket. If you don't use the subid then you can keep off this. Example: - "itemid:398 name:&cZanahoria_Dorada" - "itemid:363 subid:0 name:&cCarne_Cruda"