Rochitocr issued server command: /znpcs move 1

[servicomcr]

[18:28:32 INFO]: Rochitocr issued server command: /znpcs move 1
[18:28:32 WARN]: io.github.gonalez.znpcs.commands.CommandExecuteException
[18:28:32 WARN]: at znpcs-4.8.jar//io.github.gonalez.znpcs.commands.CommandInvoker.execute(CommandInvoker.java:25)
[18:28:32 WARN]: at znpcs-4.8.jar//io.github.gonalez.znpcs.commands.Command.execute(Command.java:69)
[18:28:32 WARN]: at io.papermc.paper.command.brigadier.bukkit.BukkitCommandNode$BukkitBrigCommand.run(BukkitCommandNode.java:91)
[18:28:32 WARN]: at com.mojang.brigadier.context.ContextChain.runExecutable(ContextChain.java:73)
[18:28:32 WARN]: at net.minecraft.commands.execution.tasks.ExecuteCommand.execute(ExecuteCommand.java:30)
[18:28:32 WARN]: at net.minecraft.commands.execution.tasks.ExecuteCommand.execute(ExecuteCommand.java:13)
[18:28:32 WARN]: at net.minecraft.commands.execution.UnboundEntryAction.lambda$bind$0(UnboundEntryAction.java:8)
[18:28:32 WARN]: at net.minecraft.commands.execution.CommandQueueEntry.execute(CommandQueueEntry.java:5)
[18:28:32 WARN]: at net.minecraft.commands.execution.ExecutionContext.runCommandQueue(ExecutionContext.java:103)
[18:28:32 WARN]: at net.minecraft.commands.Commands.executeCommandInContext(Commands.java:451)
[18:28:32 WARN]: at net.minecraft.commands.Commands.performCommand(Commands.java:358)
[18:28:32 WARN]: at net.minecraft.commands.Commands.performCommand(Commands.java:345)
[18:28:32 WARN]: at net.minecraft.commands.Commands.performCommand(Commands.java:340)
[18:28:32 WARN]: at net.minecraft.server.network.ServerGamePacketListenerImpl.performUnsignedChatCommand(ServerGamePacketListenerImpl.java:2226)
[18:28:32 WARN]: at net.minecraft.server.network.ServerGamePacketListenerImpl.lambda$handleChatCommand$15(ServerGamePacketListenerImpl.java:2200)
[18:28:32 WARN]: at net.minecraft.server.TickTask.run(TickTask.java:18)
[18:28:32 WARN]: at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:151)
[18:28:32 WARN]: at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24)
[18:28:32 WARN]: at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1572)
[18:28:32 WARN]: at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:201)
[18:28:32 WARN]: at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:125)
[18:28:32 WARN]: at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1549)
[18:28:32 WARN]: at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1542)
[18:28:32 WARN]: at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:135)
[18:28:32 WARN]: at net.minecraft.server.MinecraftServer.managedBlock(MinecraftServer.java:1501)
[18:28:32 WARN]: at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1508)
[18:28:32 WARN]: at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1353)
[18:28:32 WARN]: at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:333)
[18:28:32 WARN]: at java.base/java.lang.Thread.run(Thread.java:1583)
[18:28:32 WARN]: Caused by: java.util.ConcurrentModificationException
[18:28:32 WARN]: at java.base/java.util.HashMap$HashIterator.nextNode(HashMap.java:1605)
[18:28:32 WARN]: at java.base/java.util.HashMap$KeyIterator.next(HashMap.java:1628)
[18:28:32 WARN]: at znpcs-4.8.jar//io.github.gonalez.znpcs.npc.NPC.deleteViewers(NPC.java:400)
[18:28:32 WARN]: at znpcs-4.8.jar//io.github.gonalez.znpcs.npc.NPC.changeType(NPC.java:241)
[18:28:32 WARN]: at znpcs-4.8.jar//io.github.gonalez.znpcs.commands.list.DefaultCommand.move(DefaultCommand.java:317)
[18:28:32 WARN]: at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
[18:28:32 WARN]: at java.base/java.lang.reflect.Method.invoke(Method.java:580)
[18:28:32 WARN]: at znpcs-4.8.jar//io.github.gonalez.znpcs.commands.CommandInvoker.execute(CommandInvoker.java:23)
[18:28:32 WARN]: ... 28 more

[Banan844]

I also have this problem with ZNPCs 4.8. Try enter this command, after restart your server, using a stop command. After restarting your server, npc moves to your location.