World guard/edit Error Report

[21:09:52 INFO]: KatouOhashi issued server command: //wand
[21:09:57 INFO]: KatouOhashi issued server command: //copy
[21:10:00 INFO]: KatouOhashi issued server command: //paste
[21:10:00 ERROR]: [WorldEdit] An unexpected error while handling a WorldEdit command
java.lang.reflect.InvocationTargetException: null
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_191]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_191]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_191]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_191]
        at com.sk89q.worldedit.util.command.parametric.ParametricCallable.call(ParametricCallable.java:243) ~[?:?]
        at com.sk89q.worldedit.util.command.SimpleDispatcher.call(SimpleDispatcher.java:125) ~[?:?]
        at com.sk89q.worldedit.extension.platform.CommandManager.handleCommand(CommandManager.java:275) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_191]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_191]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_191]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_191]
        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.dispatch(EventBus.java:187) ~[?:?]
        at com.sk89q.worldedit.util.eventbus.EventBus.post(EventBus.java:173) ~[?:?]
        at com.sk89q.worldedit.bukkit.WorldEditPlugin.onCommand(WorldEditPlugin.java:231) ~[?:?]
        at com.sk89q.bukkit.util.DynamicPluginCommand.execute(DynamicPluginCommand.java:54) ~[?:?]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:138) ~[bukkit.jar:git-Bukkit-97b0057]
        at org.bukkit.craftbukkit.v1_13_R2.CraftServer.dispatchCommand(CraftServer.java:682) ~[bukkit.jar:git-Bukkit-97b0057]
        at net.minecraft.server.v1_13_R2.PlayerConnection.handleCommand(PlayerConnection.java:1587) ~[bukkit.jar:git-Bukkit-97b0057]
        at net.minecraft.server.v1_13_R2.PlayerConnection.a(PlayerConnection.java:1447) ~[bukkit.jar:git-Bukkit-97b0057]
        at net.minecraft.server.v1_13_R2.PacketPlayInChat.a(SourceFile:37) ~[bukkit.jar:git-Bukkit-97b0057]
        at net.minecraft.server.v1_13_R2.PacketPlayInChat.a(SourceFile:9) ~[bukkit.jar:git-Bukkit-97b0057]
        at net.minecraft.server.v1_13_R2.PlayerConnectionUtils.a(SourceFile:10) ~[bukkit.jar:git-Bukkit-97b0057]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_191]
        at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_191]
        at net.minecraft.server.v1_13_R2.SystemUtils.a(SourceFile:199) [bukkit.jar:git-Bukkit-97b0057]
        at net.minecraft.server.v1_13_R2.MinecraftServer.b(MinecraftServer.java:843) [bukkit.jar:git-Bukkit-97b0057]
        at net.minecraft.server.v1_13_R2.DedicatedServer.b(DedicatedServer.java:382) [bukkit.jar:git-Bukkit-97b0057]
        at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:796) [bukkit.jar:git-Bukkit-97b0057]
        at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:699) [bukkit.jar:git-Bukkit-97b0057]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_191]
Caused by: java.lang.AbstractMethodError
        at com.sk89q.worldedit.extent.AbstractDelegateExtent.getFullBlock(AbstractDelegateExtent.java:75) ~[?:?]
        at com.sk89q.worldedit.extent.AbstractDelegateExtent.getFullBlock(AbstractDelegateExtent.java:75) ~[?:?]
        at com.sk89q.worldedit.extent.AbstractDelegateExtent.getFullBlock(AbstractDelegateExtent.java:75) ~[?:?]
        at com.sk89q.worldedit.extent.AbstractDelegateExtent.getFullBlock(AbstractDelegateExtent.java:75) ~[?:?]
        at com.sk89q.worldedit.extent.AbstractDelegateExtent.getFullBlock(AbstractDelegateExtent.java:75) ~[?:?]
        at com.sk89q.worldedit.extent.ChangeSetExtent.setBlock(ChangeSetExtent.java:63) ~[?:?]
        at com.sk89q.worldedit.extent.AbstractDelegateExtent.setBlock(AbstractDelegateExtent.java:80) ~[?:?]
        at com.sk89q.worldedit.extent.MaskingExtent.setBlock(MaskingExtent.java:69) ~[?:?]
        at com.sk89q.worldedit.extent.AbstractDelegateExtent.setBlock(AbstractDelegateExtent.java:80) ~[?:?]
        at com.sk89q.worldedit.extent.validation.BlockChangeLimiter.setBlock(BlockChangeLimiter.java:87) ~[?:?]
        at com.sk89q.worldedit.EditSession.setBlock(EditSession.java:518) ~[?:?]
        at com.sk89q.worldedit.EditSession.setBlock(EditSession.java:561) ~[?:?]
        at com.sk89q.worldedit.function.block.ExtentBlockCopy.apply(ExtentBlockCopy.java:79) ~[?:?]
        at com.sk89q.worldedit.function.RegionMaskingFilter.apply(RegionMaskingFilter.java:53) ~[?:?]
        at com.sk89q.worldedit.function.visitor.RegionVisitor.resume(RegionVisitor.java:57) ~[?:?]
        at com.sk89q.worldedit.function.operation.OperationQueue.resume(OperationQueue.java:89) ~[?:?]
        at com.sk89q.worldedit.function.operation.DelegateOperation.resume(DelegateOperation.java:52) ~[?:?]
        at com.sk89q.worldedit.function.operation.Operations.completeLegacy(Operations.java:55) ~[?:?]
        at com.sk89q.worldedit.command.ClipboardCommands.paste(ClipboardCommands.java:164) ~[?:?]
        ... 32 more