citizens 플러그인이 잘 되다가 갑자기 어끄제부터 갑자기 npc들이 다 사라지면서 citizens command 를 써도 "an internal error occurred while attempting to perform this command"라고 뜹니다. modeleinge 플러그인과 citizen 플러그인 전부 최근버전들이고 혹시몰라 구동기도 purpur쓰다가 paper로 바꿨는데도 잘 모르겠어서 여기다가 질문 남겨봐요 ㅠㅠ

1. 서버 구동시 에러 코드

[11:21:24 ERROR]: Could not pass event EntitiesUnloadEvent to ModelEngine vR4.0.4

java.lang.NoClassDefFoundError: net/citizensnpcs/api/CitizensAPI

at com.ticxo.modelengine.core.listener.WorldListener.unloadEntities(WorldListener.java:77) ~[ModelEngine-4.0.4.jar:?]

at com.ticxo.modelengine.core.listener.WorldListener.onEntityUnload(WorldListener.java:43) ~[ModelEngine-4.0.4.jar:?]

at com.destroystokyo.paper.event.executor.MethodHandleEventExecutor.execute(MethodHandleEventExecutor.java:40) ~[purpur-api-1.20.4-R0.1-SNAPSHOT.jar:?]

at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:77) ~[purpur-api-1.20.4-R0.1-SNAPSHOT.jar:git-Purpur-2120]

at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[purpur-api-1.20.4-R0.1-SNAPSHOT.jar:?]

at io.papermc.paper.plugin.manager.PaperEventManager.callEvent(PaperEventManager.java:54) ~[purpur-1.20.4.jar:git-Purpur-2120]

at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.callEvent(PaperPluginManagerImpl.java:126) ~[purpur-1.20.4.jar:git-Purpur-2120]

at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:617) ~[purpur-api-1.20.4-R0.1-SNAPSHOT.jar:?]

at org.bukkit.craftbukkit.v1_20_R3.event.CraftEventFactory.callEntitiesUnloadEvent(CraftEventFactory.java:2077) ~[purpur-1.20.4.jar:git-Purpur-2120]

at io.papermc.paper.world.ChunkEntitySlices.callEntitiesUnloadEvent(ChunkEntitySlices.java:156) ~[purpur-1.20.4.jar:git-Purpur-2120]

at net.minecraft.world.level.chunk.LevelChunk.unloadCallback(LevelChunk.java:831) ~[?:?]

at net.minecraft.world.level.chunk.LevelChunk.onChunkUnload(LevelChunk.java:761) ~[?:?]

at io.papermc.paper.chunk.system.scheduling.NewChunkHolder.handleFullStatusChange(NewChunkHolder.java:1373) ~[purpur-1.20.4.jar:git-Purpur-2120]

at io.papermc.paper.chunk.system.scheduling.ChunkHolderManager.processPendingFullUpdate(ChunkHolderManager.java:1383) ~[purpur-1.20.4.jar:git-Purpur-2120]

at io.papermc.paper.chunk.system.scheduling.ChunkHolderManager.processTicketUpdates(ChunkHolderManager.java:1367) ~[purpur-1.20.4.jar:git-Purpur-2120]

at io.papermc.paper.chunk.system.scheduling.ChunkHolderManager.processTicketUpdates(ChunkHolderManager.java:1320) ~[purpur-1.20.4.jar:git-Purpur-2120]

at io.papermc.paper.chunk.system.scheduling.ChunkHolderManager.tick(ChunkHolderManager.java:784) ~[purpur-1.20.4.jar:git-Purpur-2120]

at net.minecraft.server.level.DistanceManager.purgeStaleTickets(DistanceManager.java:63) ~[?:?]

at net.minecraft.server.level.ServerChunkCache.tick(ServerChunkCache.java:492) ~[?:?]

at net.minecraft.server.level.ServerLevel.tick(ServerLevel.java:895) ~[?:?]

at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1746) ~[purpur-1.20.4.jar:git-Purpur-2120]

at net.minecraft.server.dedicated.DedicatedServer.tickChildren(DedicatedServer.java:486) ~[purpur-1.20.4.jar:git-Purpur-2120]

at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1545) ~[purpur-1.20.4.jar:git-Purpur-2120]

at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1235) ~[purpur-1.20.4.jar:git-Purpur-2120]

at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:326) ~[purpur-1.20.4.jar:git-Purpur-2120]

at java.lang.Thread.run(Thread.java:840) ~[?:?]

Caused by: java.lang.ClassNotFoundException: net.citizensnpcs.api.CitizensAPI

... 26 more

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2. citizens 플러그인 명령어 /citiens reload 실행시 나오는 에러코드

[01:19:42 INFO]: vash_mc issued server command: /citizens reload

[01:19:42 ERROR]: null

org.bukkit.command.CommandException: Cannot execute command 'citizens' in plugin Citizens v2.0.33-SNAPSHOT (build 3301) - plugin is disabled.

at org.bukkit.command.PluginCommand.execute(PluginCommand.java:37) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]

at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:155) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]

at org.bukkit.craftbukkit.v1_20_R3.CraftServer.dispatchCommand(CraftServer.java:987) ~[paper-1.20.4.jar:git-Paper-388]

at org.bukkit.craftbukkit.v1_20_R3.command.BukkitCommandWrapper.run(BukkitCommandWrapper.java:64) ~[paper-1.20.4.jar:git-Paper-388]

at com.mojang.brigadier.context.ContextChain.runExecutable(ContextChain.java:73) ~[brigadier-1.2.9.jar:?]

at net.minecraft.commands.exe