[18:40:01] [Server thread/ERROR]: An unexpected error while handling a WorldEdit command
java.lang.IllegalArgumentException: Don't know how to clean 'com.sk89q.worldedit.util.collection.BlockMap' for key 'CLEAR_LATE'
    at org.primesoft.asyncworldedit.injector.core.visitors.Helpers.cleanMapValues(Helpers.java:207) ~[?:?]
    at com.sk89q.worldedit.extent.reorder.MultiStageReorder.reset(MultiStageReorder.java) ~[?:?]
    at org.primesoft.asyncworldedit.worldedit.ThreadSafeEditSession.flushSession(ThreadSafeEditSession.java:636) ~[?:?]
    at com.sk89q.worldedit.EditSession.setReorderMode(EditSession.java:299) ~[?:?]
    at com.sk89q.worldedit.LocalSession.createEditSession(LocalSession.java:903) ~[?:?]
    at org.primesoft.asyncworldedit.worldedit.WrappedLocalSession.createEditSession(WrappedLocalSession.java:151) ~[?:?]
    at com.sk89q.worldedit.extension.platform.PlatformCommandManager.lambda$null$4(PlatformCommandManager.java:244) ~[?:?]
    at java.util.Optional.map(Optional.java:265) ~[?:?]
    at com.sk89q.worldedit.extension.platform.PlatformCommandManager.lambda$registerAlwaysInjectedValues$5(PlatformCommandManager.java:243) ~[?:?]
    at org.enginehub.piston.inject.MapBackedValueStore.lambda$injectedValue$0(MapBackedValueStore.java:56) ~[?:?]
    at java.util.Optional.flatMap(Optional.java:294) ~[?:?]
    at org.enginehub.piston.inject.MapBackedValueStore.injectedValue(MapBackedValueStore.java:56) ~[?:?]
    at org.enginehub.piston.inject.MergedValueAccess.lambda$injectedValue$0(MergedValueAccess.java:54) ~[?:?]
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195) ~[?:?]
    at java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958) ~[?:?]
    at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127) ~[?:?]
    at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) ~[?:?]
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) ~[?:?]
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[?:?]
    at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:150) ~[?:?]
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?]
    at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:543) ~[?:?]
    at org.enginehub.piston.inject.MergedValueAccess.injectedValue(MergedValueAccess.java:57) ~[?:?]
    at org.enginehub.piston.inject.MemoizingValueAccess.injectedValue(MemoizingValueAccess.java:84) ~[?:?]
    at org.enginehub.piston.impl.CommandParametersImpl.injectedValue(CommandParametersImpl.java:109) ~[?:?]
    at org.enginehub.piston.inject.InjectedValueAccess.injectedValue(InjectedValueAccess.java:44) ~[?:?]
    at com.sk89q.worldedit.command.UtilityCommandsRegistration.editSession(UtilityCommandsRegistration.java:763) ~[?:?]
    at com.sk89q.worldedit.command.UtilityCommandsRegistration._drain(UtilityCommandsRegistration.java:434) ~[?:?]
    at org.enginehub.piston.CommandManager.execute(CommandManager.java:158) ~[?:?]
    at com.sk89q.worldedit.extension.platform.PlatformCommandManager.handleCommand(PlatformCommandManager.java:471) ~[?:?]
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:?]
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
    at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
    at com.sk89q.worldedit.util.eventbus.MethodEventHandler.dispatch(MethodEventHandler.java:58) ~[?:?]
    at com.sk89q.worldedit.util.eventbus.EventHandler.handleEvent(EventHandler.java:73) ~[?:?]
    at com.sk89q.worldedit.util.eventbus.EventBus.nonwrapped_dispatch(EventBus.java:193) ~[?:?]
    at com.sk89q.worldedit.util.eventbus.EventBus.dispatch(EventBus.java) ~[?:?]
    at com.sk89q.worldedit.util.eventbus.EventBus.nonwrapped_post(EventBus.java:181) ~[?:?]
    at com.sk89q.worldedit.util.eventbus.EventBus.post(EventBus.java) ~[?:?]
    at com.sk89q.worldedit.bukkit.WorldEditPlugin.onCommand(WorldEditPlugin.java:341) ~[?:?]
    at com.sk89q.bukkit.util.DynamicPluginCommand.execute(DynamicPluginCommand.java:55) ~[?:?]
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159) ~[patched_1.14.4.jar:git-Paper-171]
    at org.bukkit.craftbukkit.v1_14_R1.CraftServer.dispatchCommand(CraftServer.java:739) ~[patched_1.14.4.jar:git-Paper-171]
    at net.minecraft.server.v1_14_R1.PlayerConnection.handleCommand(PlayerConnection.java:1800) ~[patched_1.14.4.jar:git-Paper-171]
    at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1608) ~[patched_1.14.4.jar:git-Paper-171]
    at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:47) ~[patched_1.14.4.jar:git-Paper-171]
    at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:5) ~[patched_1.14.4.jar:git-Paper-171]
    at net.minecraft.server.v1_14_R1.PlayerConnectionUtils.lambda$ensureMainThread$0(PlayerConnectionUtils.java:23) ~[patched_1.14.4.jar:git-Paper-171]
    at net.minecraft.server.v1_14_R1.TickTask.run(SourceFile:18) ~[patched_1.14.4.jar:git-Paper-171]
    at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeTask(IAsyncTaskHandler.java:136) ~[patched_1.14.4.jar:git-Paper-171]
    at net.minecraft.server.v1_14_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) ~[patched_1.14.4.jar:git-Paper-171]
    at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeNext(IAsyncTaskHandler.java:109) ~[patched_1.14.4.jar:git-Paper-171]
    at net.minecraft.server.v1_14_R1.MinecraftServer.aX(MinecraftServer.java:1012) ~[patched_1.14.4.jar:git-Paper-171]
    at net.minecraft.server.v1_14_R1.MinecraftServer.executeNext(MinecraftServer.java:1005) ~[patched_1.14.4.jar:git-Paper-171]
    at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeAll(IAsyncTaskHandler.java:95) ~[patched_1.14.4.jar:git-Paper-171]
    at net.minecraft.server.v1_14_R1.MinecraftServer.a(MinecraftServer.java:1134) ~[patched_1.14.4.jar:git-Paper-171]
    at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:918) ~[patched_1.14.4.jar:git-Paper-171]
    at java.lang.Thread.run(Thread.java:834) [?:?]