Error after sending a cmd - crash at login

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What happened?

Paper 1.21.11-97

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Internal exception io.netty.handler.coder.encoderexception: failed to encode packet 'clientbound/minecraft:add_entity

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ProtocolLib Dump
Timestamp: 01/18/26 22:14:12

ProtocolLib Version: ProtocolLib v5.4.1-SNAPSHOT-1257506
Bukkit Version: 1.21.11-R0.1-SNAPSHOT
Server Version: 1.21.11-97-b5e7257 (MC: 1.21.11)
Java Version: 21.0.5

ProtocolLib: com.comphenix.protocol.ProtocolLib@25be1bc6[
statistics=com.comphenix.protocol.metrics.Statistics@2b5d546a
packetTask=com.comphenix.protocol.scheduler.DefaultTask@34cde6e
tickCounter=4506
configExpectedMod=1
updater=com.comphenix.protocol.updater.SpigotUpdater@7b2986d9
redirectHandler=com.comphenix.protocol.ProtocolLib$2@6fa33dfc
scheduler=com.comphenix.protocol.scheduler.DefaultScheduler@af931c8
commandProtocol=com.comphenix.protocol.CommandProtocol@3d516100
commandPacket=com.comphenix.protocol.CommandPacket@7597a2a1
commandFilter=com.comphenix.protocol.CommandFilter@32d2d32
packetLogging=com.comphenix.protocol.PacketLogging@40992bee
skipDisable=false
isEnabled=true
loader=io.papermc.paper.plugin.manager.DummyBukkitPluginLoader@76f60b9c
server=CraftServer{serverName=Paper,serverVersion=1.21.11-97-b5e7257,minecraftVersion=1.21.11}
file=plugins/ProtocolLib (2).jar
description=org.bukkit.plugin.PluginDescriptionFile@5412d301
pluginMeta=org.bukkit.plugin.PluginDescriptionFile@5412d301
dataFolder=plugins/ProtocolLib
classLoader=PluginClassLoader{plugin=ProtocolLib v5.4.1-SNAPSHOT-1257506, pluginEnabled=true, url=plugins/ProtocolLib (2).jar}
naggable=true
newConfig=YamlConfiguration[path='', root='YamlConfiguration']
configFile=plugins/ProtocolLib/config.yml
logger=com.destroystokyo.paper.utils.PaperPluginLogger@1b310efa
lifecycleEventManager=io.papermc.paper.plugin.lifecycle.event.PaperLifecycleEventManager@44b8bea0
allowsLifecycleRegistration=false
isBeingEnabled=false
]
Manager: com.comphenix.protocol.injector.PacketFilterManager@670f7ed[
plugin=ProtocolLib v5.4.1-SNAPSHOT-1257506
server=CraftServer{serverName=Paper,serverVersion=1.21.11-97-b5e7257,minecraftVersion=1.21.11}
reporter=com.comphenix.protocol.ProtocolLib$1@313b7ff1
minecraftVersion=(MC: 1.21.11)
asyncFilterManager=com.comphenix.protocol.async.AsyncFilterManager@226ef1f2
pluginVerifier=com.comphenix.protocol.injector.PluginVerifier@232216a1
mainThreadPacketTypes=com.comphenix.protocol.concurrent.PacketTypeListenerSet@22ec52b7
inboundListeners=com.comphenix.protocol.injector.collection.InboundPacketListenerSet@484275ec
outboundListeners=com.comphenix.protocol.injector.collection.OutboundPacketListenerSet@1d76ec77
registeredListeners=[PacketAdapter[plugin=F3NPerm, sending=ListeningWhitelist[priority=NORMAL, packets=[ENTITY_STATUS[class=ClientboundEntityEventPacket, id=34]], gamephase=PLAYING, options=[]], receiving=EMPTY_WHITELIST], PacketAdapter[plugin=AuthMe, sending=ListeningWhitelist[priority=NORMAL, packets=[WINDOW_ITEMS[class=ClientboundContainerSetContentPacket, id=18], SET_SLOT[class=ClientboundContainerSetSlotPacket, id=20]], gamephase=PLAYING, options=[]], receiving=EMPTY_WHITELIST], com.comphenix.protocol.async.NullPacketListener@789e2e75]
networkManagerInjector=com.comphenix.protocol.injector.netty.manager.NetworkManagerInjector@2e526666
debug=false
closed=false
injected=true
]

Listeners:
nexus.slime.f3nperm.provider.ProtocolLibProvider$1@62ed1d8a[
plugin=F3NPerm v3.6.1
connectionSide=SERVER_SIDE
receivingWhitelist=EMPTY_WHITELIST
sendingWhitelist=ListeningWhitelist[priority=NORMAL, packets=[ENTITY_STATUS[class=ClientboundEntityEventPacket, id=34]], gamephase=PLAYING, options=[]]
]
fr.xephi.authme.listener.protocollib.InventoryPacketAdapter@6e33f509[
logger=fr.xephi.authme.ConsoleLogger@13e3f64f
playerCache=fr.xephi.authme.data.auth.PlayerCache@4ecd3a5b
dataSource=fr.xephi.authme.datasource.CacheDataSource@43b069e5
plugin=AuthMe v5.6.0-bCUSTOM
connectionSide=SERVER_SIDE
receivingWhitelist=EMPTY_WHITELIST
sendingWhitelist=ListeningWhitelist[priority=NORMAL, packets=[WINDOW_ITEMS[class=ClientboundContainerSetContentPacket, id=18], SET_SLOT[class=ClientboundContainerSetSlotPacket, id=20]], gamephase=PLAYING, options=[]]
]
com.comphenix.protocol.async.NullPacketListener@789e2e75[
sendingWhitelist=ListeningWhitelist[priority=LOW, packets=[], gamephase=PLAYING, options=[ASYNC]]
receivingWhitelist=ListeningWhitelist[priority=LOW, packets=[ENCRYPTION_BEGIN[class=ServerboundKeyPacket, id=1], START[class=ServerboundHelloPacket, id=0]], gamephase=PLAYING, options=[ASYNC]]
plugin=FastLogin v1.12-SNAPSHOT-65a379c
]

Plugins Using ProtocolLib:
AuthMe by [sgdc3, games647, Hex3l, krusic22]
FastLogin by [games647, https://github.com/games647/FastLogin/graphs/contributors]
F3NPerm by [Rodney_Mc_Kay]

---

[21:13:01 ERROR]: Error sending packet clientbound/minecraft:add_entity io.netty.handler.codec.EncoderException: Failed to encode packet 'clientbound/minecraft:add_entity' at net.minecraft.network.codec.IdDispatchCodec.encode(IdDispatchCodec.java:62) ~[paper-1.21.11.jar:1.21.11-97-b5e7257] at net.minecraft.network.codec.IdDispatchCodec.encode(IdDispatchCodec.java:13) ~[paper-1.21.11.jar:1.21.11-97-b5e7257] at net.minecraft.network.PacketEncoder.encode(PacketEncoder.java:27) ~[paper-1.21.11.jar:1.21.11-97-b5e7257] at net.minecraft.network.PacketEncoder.encode(PacketEncoder.java:12) ~[paper-1.21.11.jar:1.21.11-97-b5e7257] at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:107) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:827) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:752) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:113) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:827) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:752) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:120) ~[netty-codec-base-4.2.7.Final.jar:4.2.7.Final] at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:827) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:752) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] at io.netty.channel.ChannelOutboundHandlerAdapter.write(ChannelOutboundHandlerAdapter.java:113) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] at net.minecraft.network.Connection$2.write(Connection.java:684) ~[paper-1.21.11.jar:1.21.11-97-b5e7257] at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:827) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:752) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] at io.netty.channel.DefaultChannelPipeline.write(DefaultChannelPipeline.java:1036) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] at io.netty.channel.Channel.write(Channel.java:267) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] at ProtocolLib.jar//com.comphenix.protocol.injector.netty.channel.NettyChannelProxy.write(NettyChannelProxy.java:210) ~[?:?] at net.minecraft.network.Connection.doSendPacket(Connection.java:471) ~[paper-1.21.11.jar:1.21.11-97-b5e7257] at net.minecraft.network.Connection.lambda$sendPacket$10(Connection.java:451) ~[paper-1.21.11.jar:1.21.11-97-b5e7257] at ProtocolLib.jar//com.comphenix.protocol.injector.netty.channel.NettyEventLoopProxy.lambda$proxyRunnable$2(NettyEventLoopProxy.java:49) ~[?:?] at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:148) ~[netty-common-4.2.7.Final.jar:4.2.7.Final] at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:141) ~[netty-common-4.2.7.Final.jar:4.2.7.Final] at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:535) ~[netty-common-4.2.7.Final.jar:4.2.7.Final] at io.netty.channel.SingleThreadIoEventLoop.run(SingleThreadIoEventLoop.java:201) ~[netty-transport-4.2.7.Final.jar:4.2.7.Final] at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:1193) ~[netty-common-4.2.7.Final.jar:4.2.7.Final] at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.2.7.Final.jar:4.2.7.Final] at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?] Caused by: java.lang.NullPointerException: Cannot read field "x" because "vector" is null at net.minecraft.network.LpVec3.write(LpVec3.java:42) ~[paper-1.21.11.jar:1.21.11-97-b5e7257] at net.minecraft.network.FriendlyByteBuf.writeLpVec3(FriendlyByteBuf.java:497) ~[paper-1.21.11.jar:1.21.11-97-b5e7257] at net.minecraft.network.protocol.game.ClientboundAddEntityPacket.write(ClientboundAddEntityPacket.java:108) ~[paper-1.21.11.jar:1.21.11-97-b5e7257] at net.minecraft.network.codec.StreamCodec$2.encode(StreamCodec.java:44) ~[paper-1.21.11.jar:1.21.11-97-b5e7257] at net.minecraft.network.codec.StreamCodec$5.encode(StreamCodec.java:94) ~[paper-1.21.11.jar:1.21.11-97-b5e7257] at net.minecraft.network.codec.StreamCodec$5.encode(StreamCodec.java:84) ~[paper-1.21.11.jar:1.21.11-97-b5e7257] at net.minecraft.network.codec.IdDispatchCodec.encode(IdDispatchCodec.java:57) ~[paper-1.21.11.jar:1.21.11-97-b5e7257][21:13:01 INFO]: WeLlama lost connection: Internal Exception: io.netty.handler.codec.EncoderException: Failed to encode packet 'clientbound/minecraft:add_entity'

Steps to reproduce

No response

Plugin list

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Configuration file

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Server log

No response

Plugin version

last one

Platform

Spigot

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• I tried the latest build
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