cant Make New NPCs

[Sam65658]

In Game It Says Please Remort This

Errorr: [See console]
java.lang.NullPointerExcption: null

Console Says

22.08 11:52:41 [Server] SEVERE at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
22.08 11:52:41 [Server] SEVERE at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:406)
22.08 11:52:41 [Server] SEVERE at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:474)
22.08 11:52:41 [Server] SEVERE at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
22.08 11:52:41 [Server] SEVERE at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:581)
22.08 11:52:41 [Server] SEVERE at net.minecraft.server.DedicatedServerConnection.b(SourceFile:30)
22.08 11:52:41 [Server] SEVERE at net.minecraft.server.ServerConnection.b(SourceFile:35)
22.08 11:52:41 [Server] SEVERE at net.minecraft.server.NetServerHandler.d(NetServerHandler.java:109)
22.08 11:52:41 [Server] SEVERE at net.minecraft.server.NetworkManager.b(NetworkManager.java:276)
22.08 11:52:41 [Server] SEVERE at net.minecraft.server.Packet3Chat.handle(Packet3Chat.java:44)
22.08 11:52:41 [Server] SEVERE at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:807)
22.08 11:52:41 [Server] SEVERE at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:825)
22.08 11:52:41 [Server] SEVERE at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:878)
22.08 11:52:41 [Server] SEVERE at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:492)
22.08 11:52:41 [Server] SEVERE at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:168)
22.08 11:52:41 [Server] SEVERE at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40)
22.08 11:52:41 [Server] SEVERE at net.citizensnpcs.Citizens.onCommand(Citizens.java:208)
22.08 11:52:41 [Server] SEVERE at net.citizensnpcs.resources.sk89q.CommandsManager.execute(CommandsManager.java:392)
22.08 11:52:41 [Server] SEVERE at net.citizensnpcs.resources.sk89q.CommandsManager.executeMethod(CommandsManager.java:500)
22.08 11:52:41 [Server] SEVERE at java.lang.reflect.Method.invoke(Method.java:601)
22.08 11:52:41 [Server] SEVERE at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
22.08 11:52:41 [Server] SEVERE at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
22.08 11:52:41 [Server] SEVERE at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
22.08 11:52:41 [Server] SEVERE at net.citizensnpcs.commands.BasicCommands.create(BasicCommands.java:169)
22.08 11:52:41 [Server] SEVERE at net.citizensnpcs.Economy.hasEnough(Economy.java:92)
22.08 11:52:41 [Server] SEVERE at net.citizensnpcs.Economy.playerHasEnough(Economy.java:50)
22.08 11:52:41 [Server] SEVERE at net.milkbowl.vault.economy.plugins.Economy_iConomy6.hasAccount(Economy_iConomy6.java:244)
22.08 11:52:41 [Server] SEVERE java.lang.NullPointerException

Thanks-Kyle