Bukkit

What steps will reproduce the problem?
1. Using any command.

What is the expected output? What do you see instead?
Expected: For it to work...

What I see(In the console):
2012-01-16 20:32:47 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'buy' in plugin DynamicShop v1.45
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:42)
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:168)
    at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:385)
    at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:777)
    at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:737)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:725)
    at net.minecraft.server.Packet3Chat.handle(Packet3Chat.java:33)
    at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:100)
    at net.minecraft.server.NetworkListenThread.a(SourceFile:108)
    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:536)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:434)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)
Caused by: java.lang.NullPointerException
    at me.zylinder.dynamicshop.PriceHandler.linkItems(PriceHandler.java:66)
    at me.zylinder.dynamicshop.PriceHandler.raisePriceGlobal(PriceHandler.java:113)
    at me.zylinder.dynamicshop.TransactionHandler.buyGlobal(TransactionHandler.java:111)
    at me.zylinder.dynamicshop.DynamicShopPlayerListener.onCommand(DynamicShopPlayerListener.java:118)
    at me.zylinder.dynamicshop.DynamicShop.onCommand(DynamicShop.java:117)
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40)
    ... 12 more

What version of the product are you using?
Newest Version

Do you have an error log of what happened?
^^

First of all: Newest version says me nothing if I'm reading this next week or so. Something with your prices isn't correct, try it out with a new generated config. Does this appear on any command or only trade commands?

I have erased the config myself and it still does not work. I'll try deleting the whole folder and see what happens.

@DeadIntermediate: Go

Nope, still the same thing.

Hope to see this compatible with 1.2.5 or up to 1.3 hopefully working.

Also, there is a famous plugin called "Buycraft" and it uses "/buy" as well. Prob change it to something like "/ds buy" or "/ds sell" ?