Wireless redstone redpower addon internal server error

[ben657]

Title: Wireless redstone redpower addon internal server error

Version: 3.1.2

OS: Linux Server, windows client

Java Version: 7

Description of Problem:

When spawning (using NEI) a wireless redstone receiver, transmitter or jammer, I get kicked from my server, and an internal error is thrown (below). The mod works as intended on single player, so it's presumably a server sided issue. It also happens when crafting the item properly, but with no server error, just a null pointer on the client.

Error Messages:

Internal Server error

Error Log:

[WARNING] Failed to handle packet: java.lang.NullPointerException

java.lang.NullPointerException

at net.minecraft.server.ItemStack.setData(ItemStack.java:153)

at net.minecraft.server.ItemStack.<init>(ItemStack.java:39)

at codechicken.core.PacketCustom.readItemStack(PacketCustom.java:409)

at codechicken.nei.NEIServerPacketHandler.handleGiveItem(NEIServerPacketHandler.java:116)

at codechicken.nei.NEIServerPacketHandler.handlePacket(NEIServerPacketHandler.java:21)

at codechicken.core.CoreUtils.handlePacket(CoreUtils.java:150)

at codechicken.core.PacketCustom.recieve(PacketCustom.java:451)

at net.minecraft.server.mod_CodeChickenCore.onPacket250Received(mod_CodeChickenCore.java:65)

at net.minecraft.server.BaseMod.onPacket250Packet(BaseMod.java:93)

at cpw.mods.fml.server.FMLBukkitHandler.handlePacket250(FMLBukkitHandler.java:407)

at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:1338)

at net.minecraft.server.Packet250CustomPayload.handle(SourceFile:46)

at net.minecraft.server.NetworkManager.b(NetworkManager.java:234)

at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:119)

at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:83)

at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:579)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:467)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

[tanki123]

did you fiddle with the block ids? i would assumme its a block id mismatch since it hapends on both crafting and spawning