Bukkit

Short description about the bug/problem:
This plugin is phenomenal, especially the GUI. However, I am having a really hard time with items actually showing up as the correct items (i.e., the correct images) when they are inside the menu.

What is the expected output? What do you see instead?
I set the item IDs in the config, then go inside MC, but half of the time the items do not render correctly. For example, cooked chicken comes up as a pink/black block as if the cooked chicken item does not exist (even though the ID is correct) - and half of the items I have tried do this.

What version of BossShop are you using?
The latest version, v2.1.0.

Do you have an error log of what happened? Please paste it at pastie.org!
No error logs, just items not rendering correctly. Seems like BossShop is not pulling the item datas using the IDs correctly.

Please provide any additional information below.
I am running a sort of patched version of Spigot that allows 1.8 players to connect, but does not have the 1.8 items available to use, and I do have Vault installed. Nothing else is wrong with the plugin except for items not rendering correctly.