gistfile1.txt

[17:25:41] [Netty Server IO #6/ERROR] [FML]: There was a critical exception handling a packet on channel TeamWizardry
io.netty.handler.codec.EncoderException: java.lang.RuntimeException: Undefined discriminator for message type vazkii.psi.common.network.message.MessageDataSync in channel TeamWizardry
        at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:106) ~[minecraft_server.1.12.2.jar:?]
        at io.netty.handler.codec.MessageToMessageCodec.write(MessageToMessageCodec.java:116) ~[minecraft_server.1.12.2.jar:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:738) ~[minecraft_server.1.12.2.jar:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:801) ~[minecraft_server.1.12.2.jar:?]
        at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:814) ~[minecraft_server.1.12.2.jar:?]
        at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:794) ~[minecraft_server.1.12.2.jar:?]
        at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:831) ~[minecraft_server.1.12.2.jar:?]
        at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1032) ~[minecraft_server.1.12.2.jar:?]
        at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:296) ~[minecraft_server.1.12.2.jar:?]
        at net.minecraftforge.fml.common.network.simpleimpl.SimpleNetworkWrapper.sendTo(SimpleNetworkWrapper.java:250) ~[SimpleNetworkWrapper.class:?]
        at com.kamefrede.rpsideas.items.components.ItemUnstableBattery.onDamage(ItemUnstableBattery.java:59) ~[ItemUnstableBattery.class:?]
        at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_157_ItemUnstableBattery_onDamage_LivingHurtEvent.invoke(.dynamic) ~[?:?]
        at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) ~[ASMEventHandler.class:?]
        at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182) ~[EventBus.class:?]
        at net.minecraftforge.common.ForgeHooks.onLivingHurt(ForgeHooks.java:603) ~[ForgeHooks.class:?]
        at net.minecraft.entity.player.EntityPlayer.damageEntity(EntityPlayer.java:1120) ~[aed.class:?]
        at net.minecraft.entity.EntityLivingBase.attackEntityFrom(EntityLivingBase.java:926) ~[vp.class:?]
        at net.minecraft.entity.player.EntityPlayer.attackEntityFrom(EntityPlayer.java:1038) ~[aed.class:?]
        at net.minecraft.entity.player.EntityPlayerMP.attackEntityFrom(EntityPlayerMP.java:645) ~[oq.class:?]
        at net.minecraft.entity.EntityLivingBase.fall(EntityLivingBase.java:1325) ~[vp.class:?]
        at net.minecraft.entity.player.EntityPlayer.fall(EntityPlayer.java:1946) ~[aed.class:?]
        at net.minecraft.block.Block.onFallenUpon(Block.java:821) ~[aow.class:?]
        at net.minecraft.entity.Entity.updateFallState(Entity.java:1132) ~[vg.class:?]
        at net.minecraft.entity.EntityLivingBase.updateFallState(EntityLivingBase.java:215) ~[vp.class:?]
        at net.minecraft.entity.player.EntityPlayerMP.handleFalling(EntityPlayerMP.java:838) ~[oq.class:?]
        at net.minecraft.network.NetHandlerPlayServer.processPlayer(NetHandlerPlayServer.java:585) ~[pa.class:?]
        at net.minecraft.network.play.client.CPacketPlayer.processPacket(SourceFile:126) ~[lk.class:?]
        at net.minecraft.network.play.client.CPacketPlayer$Position.processPacket(SourceFile:57) ~[lk$a.class:?]
        at net.minecraft.network.PacketThreadUtil$1.run(SourceFile:13) ~[hv$1.class:?]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~[?:1.8.0_211]
        at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:1.8.0_211]
        at net.minecraft.util.Util.runTask(SourceFile:529) ~[h.class:?]
        at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:723) ~[MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.updateTimeLightAndEntities(DedicatedServer.java:397) ~[nz.class:?]
        at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:668) ~[MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526) ~[MinecraftServer.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_211]
Caused by: java.lang.RuntimeException: Undefined discriminator for message type vazkii.psi.common.network.message.MessageDataSync in channel TeamWizardry
        at net.minecraftforge.fml.common.network.FMLIndexedMessageToMessageCodec.encode(FMLIndexedMessageToMessageCodec.java:76) ~[FMLIndexedMessageToMessageCodec.class:?]
        at io.netty.handler.codec.MessageToMessageCodec$1.encode(MessageToMessageCodec.java:67) ~[minecraft_server.1.12.2.jar:?]
        at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:88) ~[minecraft_server.1.12.2.jar:?]
        ... 36 more
[17:25:41] [Netty Server IO #6/ERROR] [FML]: Network Disconnect: A fatal error has occurred, this connection is terminated