04.11 11:21:52 [Server] INFO at java.lang.Thread.run(Unknown Source) [?:1.8.0_11]
04.11 11:21:52 [Server] INFO at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:658) [MinecraftServer.class:?]
04.11 11:21:52 [Server] INFO at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:798) [MinecraftServer.class:?]
04.11 11:21:52 [Server] INFO at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:423) [lt.class:?]
04.11 11:21:52 [Server] INFO at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:980) [MinecraftServer.class:?]
04.11 11:21:52 [Server] INFO at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:173) [nc.class:?]
04.11 11:21:52 [Server] INFO at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:244) [ej.class:?]
04.11 11:21:52 [Server] INFO at net.minecraft.network.play.client.C01PacketChatMessage.func_148833_a(C01PacketChatMessage.java:53) [ir.class:?]
04.11 11:21:52 [Server] INFO at net.minecraft.network.play.client.C01PacketChatMessage.func_148833_a(C01PacketChatMessage.java:38) [ir.class:?]
04.11 11:21:52 [Server] INFO at net.minecraft.network.NetHandlerPlayServer.func_147354_a(NetHandlerPlayServer.java:1132) [nh.class:?]
04.11 11:21:52 [Server] INFO at net.minecraft.network.NetHandlerPlayServer.func_147361_d(NetHandlerPlayServer.java:1356) [nh.class:?]
04.11 11:21:52 [Server] INFO at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchVanillaCommand(CraftServer.java:733) [CraftServer.class:git-Cauldron-MCPC-Plus-1.7.10-1.1231.04.209]
04.11 11:21:52 [Server] INFO at org.bukkit.craftbukkit.v1_7_R4.command.CraftSimpleCommandMap.dispatch(CraftSimpleCommandMap.java:53) [CraftSimpleCommandMap.class:git-Cauldron-MCPC-Plus-1.7.10-1.1231.04.209]
04.11 11:21:52 [Server] INFO at net.minecraft.command.CommandHandler.func_71556_a(CommandHandler.java:99) [z.class:?]
04.11 11:21:52 [Server] INFO at pixelextras.commands.TeachCommand.func_71515_b(TeachCommand.java:106) ~[TeachCommand.class:?]
04.11 11:21:52 [Server] INFO java.lang.NullPointerException
04.11 11:21:52 [Server] ERROR Couldn't process command: 'teach flawless_zero 1 ancient power'
Could someone see what is wrong here?