Could not pass event PlayerJoinEvent to ServersNPC v4.8

[servicomcr]

[01:26:16 ERROR]: Could not pass event PlayerJoinEvent to ServersNPC v4.8
java.util.NoSuchElementException: decoder
at io.netty.channel.DefaultChannelPipeline.getContextOrDie(DefaultChannelPipeline.java:1073) ~[netty-transport-4.1.97.Final.jar:4.1.97.Final]
at io.netty.channel.DefaultChannelPipeline.addAfter(DefaultChannelPipeline.java:302) ~[netty-transport-4.1.97.Final.jar:4.1.97.Final]
at io.netty.channel.DefaultChannelPipeline.addAfter(DefaultChannelPipeline.java:290) ~[netty-transport-4.1.97.Final.jar:4.1.97.Final]
at znpcs-4.8.jar/io.github.gonalez.znpcs.user.ZUser.(ZUser.java:54) ~[znpcs-4.8.jar:?]
at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1228) ~[?:?]
at znpcs-4.8.jar/io.github.gonalez.znpcs.user.ZUser.find(ZUser.java:89) ~[znpcs-4.8.jar:?]
at znpcs-4.8.jar/io.github.gonalez.znpcs.user.ZUser.find(ZUser.java:93) ~[znpcs-4.8.jar:?]
at znpcs-4.8.jar/io.github.gonalez.znpcs.listeners.PlayerListener.onJoin(PlayerListener.java:25) ~[znpcs-4.8.jar:?]
at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor534.execute(Unknown Source) ~[?:?]
at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:77) ~[paper-mojangapi-1.21-R0.1-SNAPSHOT.jar:?]
at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:80) ~[paper-mojangapi-1.21-R0.1-SNAPSHOT.jar:1.21-2284-4e55e26]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[paper-mojangapi-1.21-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.manager.PaperEventManager.callEvent(PaperEventManager.java:54) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.callEvent(PaperPluginManagerImpl.java:131) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:628) ~[paper-mojangapi-1.21-R0.1-SNAPSHOT.jar:?]
at net.minecraft.server.players.PlayerList.placeNewPlayer(PlayerList.java:347) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.network.ServerConfigurationPacketListenerImpl.handleConfigurationFinished(ServerConfigurationPacketListenerImpl.java:173) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.network.protocol.configuration.ServerboundFinishConfigurationPacket.handle(ServerboundFinishConfigurationPacket.java:22) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.network.protocol.configuration.ServerboundFinishConfigurationPacket.handle(ServerboundFinishConfigurationPacket.java:13) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$0(PacketUtils.java:56) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.TickTask.run(TickTask.java:18) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:151) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1573) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:201) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:125) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1550) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1543) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:135) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.MinecraftServer.managedBlock(MinecraftServer.java:1502) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1509) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1354) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:333) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]
[01:26:17 INFO]: [PVDC] Loaded prefixes: [dot, another_prefix]
[01:26:17 WARN]: [ServersNPC] Plugin ServersNPC v4.8 generated an exception while executing task 237
java.util.NoSuchElementException: decoder
at io.netty.channel.DefaultChannelPipeline.getContextOrDie(DefaultChannelPipeline.java:1073) ~[netty-transport-4.1.97.Final.jar:4.1.97.Final]
at io.netty.channel.DefaultChannelPipeline.addAfter(DefaultChannelPipeline.java:302) ~[netty-transport-4.1.97.Final.jar:4.1.97.Final]
at io.netty.channel.DefaultChannelPipeline.addAfter(DefaultChannelPipeline.java:290) ~[netty-transport-4.1.97.Final.jar:4.1.97.Final]
at znpcs-4.8.jar/io.github.gonalez.znpcs.user.ZUser.(ZUser.java:54) ~[znpcs-4.8.jar:?]
at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1228) ~[?:?]
at znpcs-4.8.jar/io.github.gonalez.znpcs.user.ZUser.find(ZUser.java:89) ~[znpcs-4.8.jar:?]
at znpcs-4.8.jar/io.github.gonalez.znpcs.user.ZUser.find(ZUser.java:93) ~[znpcs-4.8.jar:?]
at znpcs-4.8.jar/io.github.gonalez.znpcs.npc.task.NPCManagerTask.run(NPCManagerTask.java:24) ~[znpcs-4.8.jar:?]
at org.bukkit.craftbukkit.scheduler.CraftTask.run(CraftTask.java:86) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at org.bukkit.craftbukkit.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:57) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22) ~[purpur-1.21.jar:?]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[?:?]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[?:?]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]
[01:26:17 INFO]: FCSANTITO lost connection: Disconnected
[01:26:17 ERROR]: Could not pass event PlayerQuitEvent to ServersNPC v4.8
java.lang.IllegalStateException: can't find user 85a78e4c-3449-3693-bcd7-4e4d6ce7ba04
at znpcs-4.8.jar/io.github.gonalez.znpcs.user.ZUser.unregister(ZUser.java:99) ~[znpcs-4.8.jar:?]
at znpcs-4.8.jar/io.github.gonalez.znpcs.listeners.PlayerListener.onQuit(PlayerListener.java:30) ~[znpcs-4.8.jar:?]
at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor532.execute(Unknown Source) ~[?:?]
at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:77) ~[paper-mojangapi-1.21-R0.1-SNAPSHOT.jar:?]
at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:80) ~[paper-mojangapi-1.21-R0.1-SNAPSHOT.jar:1.21-2284-4e55e26]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[paper-mojangapi-1.21-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.manager.PaperEventManager.callEvent(PaperEventManager.java:54) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.callEvent(PaperPluginManagerImpl.java:131) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:628) ~[paper-mojangapi-1.21-R0.1-SNAPSHOT.jar:?]
at net.minecraft.server.players.PlayerList.remove(PlayerList.java:607) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.players.PlayerList.remove(PlayerList.java:591) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.network.ServerGamePacketListenerImpl.removePlayerFromWorld(ServerGamePacketListenerImpl.java:2115) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.network.ServerGamePacketListenerImpl.onDisconnect(ServerGamePacketListenerImpl.java:2095) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.network.ServerGamePacketListenerImpl.onDisconnect(ServerGamePacketListenerImpl.java:2082) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.network.Connection.handleDisconnection(Connection.java:911) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.network.ServerConnectionListener.tick(ServerConnectionListener.java:262) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1860) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.dedicated.DedicatedServer.tickChildren(DedicatedServer.java:509) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1634) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1334) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:333) ~[purpur-1.21.jar:1.21-2284-4e55e26]
at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]