[1.12.2] Forge Server kicks me when i do inventory stuff

[Lucaskyy]

Im not sure if im supposed to post this here or not, but everything seems fine when i join but as soon as i do something in my inventory i get disconnected and in my console i get this error:

 

Spoiler

[Netty Server IO #2/ERROR] [FML]: NetworkDispatcher exception
io.netty.handler.codec.DecoderException: java.lang.IndexOutOfBoundsException: readerIndex(10) + length(1) exceeds writerIndex(10): PooledUnsafeDirectByteBuf(ridx: 10, widx: 10, cap: 10)
        at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:442) ~[ByteToMessageDecoder.class:?]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:248) ~[ByteToMessageDecoder.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [AbstractChannelHandlerContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [AbstractChannelHandlerContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [AbstractChannelHandlerContext.class:?]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:293) [ByteToMessageDecoder.class:?]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:267) [ByteToMessageDecoder.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [AbstractChannelHandlerContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [AbstractChannelHandlerContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [AbstractChannelHandlerContext.class:?]
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:293) [ByteToMessageDecoder.class:?]
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:267) [ByteToMessageDecoder.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [AbstractChannelHandlerContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [AbstractChannelHandlerContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [AbstractChannelHandlerContext.class:?]
        at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) [MessageToMessageDecoder.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [AbstractChannelHandlerContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [AbstractChannelHandlerContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [AbstractChannelHandlerContext.class:?]
        at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:287) [IdleStateHandler.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [AbstractChannelHandlerContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [AbstractChannelHandlerContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [AbstractChannelHandlerContext.class:?]
        at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1334) [DefaultChannelPipeline$HeadContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [AbstractChannelHandlerContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [AbstractChannelHandlerContext.class:?]
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:926) [DefaultChannelPipeline.class:?]
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:134) [AbstractNioByteChannel$NioByteUnsafe.class:?]
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:624) [NioEventLoop.class:?]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:559) [NioEventLoop.class:?]
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:476) [NioEventLoop.class:?]
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:438) [NioEventLoop.class:?]
        at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858) [SingleThreadEventExecutor$5.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_191]
Caused by: java.lang.IndexOutOfBoundsException: readerIndex(10) + length(1) exceeds writerIndex(10): PooledUnsafeDirectByteBuf(ridx: 10, widx: 10, cap: 10)
        at io.netty.buffer.AbstractByteBuf.checkReadableBytes0(AbstractByteBuf.java:1396) ~[AbstractByteBuf.class:?]
        at io.netty.buffer.AbstractByteBuf.readByte(AbstractByteBuf.java:687) ~[AbstractByteBuf.class:?]
        at net.minecraft.network.PacketBuffer.readByte(PacketBuffer.java:864) ~[gy.class:?]
        at net.minecraft.network.PacketBuffer.readVarInt(PacketBuffer.java:201) ~[gy.class:?]
        at net.minecraft.network.PacketBuffer.handler$readIntItemId$zel000(PacketBuffer.java:1937) ~[gy.class:?]
        at net.minecraft.network.PacketBuffer.readItemStack(PacketBuffer.java) ~[gy.class:?]
        at net.minecraft.network.play.client.CPacketClickWindow.readPacketData(CPacketClickWindow.java:48) ~[lf.class:?]
        at net.minecraft.network.NettyPacketDecoder.decode(SourceFile:40) ~[gz.class:?]
        at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:411) ~[ByteToMessageDecoder.class:?]
        ... 33 more
[Server thread/INFO] [minecraft/NetHandlerPlayServer]: User lost connection: Internal Exception: io.netty.handler.codec.DecoderException: java.lang.IndexOutOfBoundsException: readerIndex(10) + length(1) exceeds writerIndex(10): PooledUnsafeDirectByteBuf(ridx: 10, widx: 10, cap: 10)
[Server thread/INFO] [minecraft/DedicatedServer]: User left the game

 

Anyone that possibly knows the issue to this? The modpack has 180 mods and has JEID (getting too many item id's error without). Im clueless right now.

Edited March 30, 2020 by Lucaskyy
editted title