Can't login

[4iterokk]

Stack trace

[15:03:26 WARN]: [ac.grim.grimac.shaded.com.github.retrooper.packetevents.PacketEventsAPI] PacketEvents caught an unhandled exception while calling your listener.
java.lang.IndexOutOfBoundsException: readerIndex(51) + length(2) exceeds writerIndex(51): PooledUnsafeDirectByteBuf(ridx: 51, widx: 51, cap: 256)
at io.netty.buffer.AbstractByteBuf.checkReadableBytes0(AbstractByteBuf.java:1477) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.buffer.AbstractByteBuf.readShort(AbstractByteBuf.java:750) ~[patched_1.16.5.jar:git-Purpur-1171]
at ac.grim.grimac.shaded.io.github.retrooper.packetevents.netty.buffer.ByteBufOperatorModernImpl.readShort(ByteBufOperatorModernImpl.java:79) ~[?:?]
at ac.grim.grimac.shaded.com.github.retrooper.packetevents.netty.buffer.ByteBufHelper.readShort(ByteBufHelper.java:95) ~[?:?]
at ac.grim.grimac.shaded.com.github.retrooper.packetevents.wrapper.PacketWrapper.readShort(PacketWrapper.java:661) ~[?:?]
at ac.grim.grimac.shaded.com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerSpawnEntity.read(WrapperPlayServerSpawnEntity.java:129) ~[?:?]
at ac.grim.grimac.shaded.com.github.retrooper.packetevents.wrapper.PacketWrapper.readEvent(PacketWrapper.java:287) ~[?:?]
at ac.grim.grimac.shaded.com.github.retrooper.packetevents.wrapper.PacketWrapper.(PacketWrapper.java:184) ~[?:?]
at ac.grim.grimac.shaded.com.github.retrooper.packetevents.wrapper.PacketWrapper.(PacketWrapper.java:174) ~[?:?]
at ac.grim.grimac.shaded.com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerSpawnEntity.(WrapperPlayServerSpawnEntity.java:49) ~[?:?]
at ac.grim.grimac.events.packets.PacketEntityReplication.onPacketSend(PacketEntityReplication.java:115) ~[?:?]
at ac.grim.grimac.manager.CheckManager.onPacketSend(CheckManager.java:325) ~[?:?]
at ac.grim.grimac.events.packets.CheckManagerListener.onPacketSend(CheckManagerListener.java:816) ~[?:?]
at ac.grim.grimac.shaded.com.github.retrooper.packetevents.event.PacketSendEvent.call(PacketSendEvent.java:51) ~[?:?]
at ac.grim.grimac.shaded.com.github.retrooper.packetevents.event.EventManager.callEvent(EventManager.java:85) ~[?:?]
at ac.grim.grimac.shaded.com.github.retrooper.packetevents.util.PacketEventsImplHelper.handleClientBoundPacket(PacketEventsImplHelper.java:61) ~[?:?]
at ac.grim.grimac.shaded.io.github.retrooper.packetevents.injector.handlers.PacketEventsEncoder.handleClientBoundPacket(PacketEventsEncoder.java:87) ~[?:?]
at ac.grim.grimac.shaded.io.github.retrooper.packetevents.injector.handlers.PacketEventsEncoder.write(PacketEventsEncoder.java:113) ~[?:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:709) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:792) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:702) ~[patched_1.16.5.jar:git-Purpur-1171]
at it.ytnoos.lpx.lib.com.github.retrooper.packetevents.injector.handlers.PacketEventsEncoder.write(PacketEventsEncoder.java) ~[?:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:709) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:792) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:702) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:113) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:709) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:792) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:702) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:120) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:764) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:790) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:758) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1020) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:299) ~[patched_1.16.5.jar:git-Purpur-1171]
at com.comphenix.protocol.injector.netty.channel.NettyChannelProxy.writeAndFlush(NettyChannelProxy.java:227) ~[?:?]
at com.comphenix.protocol.injector.netty.channel.NettyChannelProxy.writeAndFlush(NettyChannelProxy.java:233) ~[?:?]
at net.minecraft.server.v1_16_R3.NetworkManager$1.run(NetworkManager.java:450) ~[patched_1.16.5.jar:git-Purpur-1171]
at com.comphenix.protocol.injector.netty.channel.NettyEventLoopProxy.lambda$proxyRunnable$2(NettyEventLoopProxy.java:49) ~[?:?]
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:384) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[patched_1.16.5.jar:git-Purpur-1171]
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[patched_1.16.5.jar:git-Purpur-1171]
at java.lang.Thread.run(Thread.java:840) [?:?]

How to replicate it if known

1. Login

Grim version

2.3.72-71bd30a-b91

Server version

Purpur 1.16.5

Affected Platform(s)

Bukkit

Plugins/mods

CMI, CMILib, CMIEinjector, MoneyFromMobs, Multiverse, GrimAC, PacketEvents 2.9.4, ProtocolLib, Vault, WorldEdit, WorldGuard

[Axionize]

retrooper/packetevents#1310