Problème de plugin

Bonjour,
quand je fais la commade "/region flag "nom de la region" "flag", le plugin ne marche pas... J'imagine qu'il y a quelque chose que je n'aurai pas du toucher dans la config :(

[16:22:32] [Server thread/INFO]: SpimX issued server command: /rg flag Konoha mob-spawning deny
[16:22:32] [Server thread/WARN]: [WorldGuard] WorldGuard encountered an unexpected error
java.lang.NullPointerException
at com.sk89q.worldguard.bukkit.RegionContainer.getSaveFailures(RegionContainer.java:254) ~[worldguard-6.0.0-beta-03.jar:?]
at com.sk89q.worldguard.bukkit.commands.region.RegionCommandsBase.warnAboutSaveFailures(RegionCommandsBase.java:297) ~[worldguard-6.0.0-beta-03.jar:?]
at com.sk89q.worldguard.bukkit.commands.region.RegionCommands.flag(RegionCommands.java:462) ~[worldguard-6.0.0-beta-03.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_77]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_77]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_77]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_77]
at com.sk89q.minecraft.util.commands.CommandsManager.invokeMethod(CommandsManager.java:533) ~[WorldEdit.jar:?]
at com.sk89q.minecraft.util.commands.CommandsManager.executeMethod(CommandsManager.java:520) ~[WorldEdit.jar:?]
at com.sk89q.minecraft.util.commands.CommandsManager.executeMethod(CommandsManager.java:475) ~[WorldEdit.jar:?]
at com.sk89q.minecraft.util.commands.CommandsManager.execute(CommandsManager.java:409) ~[WorldEdit.jar:?]
at com.sk89q.worldguard.bukkit.WorldGuardPlugin.onCommand(WorldGuardPlugin.java:249) [worldguard-6.0.0-beta-03.jar:?]
at com.sk89q.bukkit.util.DynamicPluginCommand.execute(DynamicPluginCommand.java:52) [WorldEdit.jar:?]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:181) [SimpleCommandMap.class:git-Cauldron-Reloaded-1.7.10-1.1388.1.0]
at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCommand(CraftServer.java:717) [CraftServer.class:git-Cauldron-Reloaded-1.7.10-1.1388.1.0]
at net.minecraft.network.NetHandlerPlayServer.func_147361_d(NetHandlerPlayServer.java:1317) [nh.class:?]
at net.minecraft.network.NetHandlerPlayServer.func_147354_a(NetHandlerPlayServer.java:1099) [nh.class:?]
at net.minecraft.network.play.client.C01PacketChatMessage.func_148833_a(C01PacketChatMessage.java:38) [ir.class:?]
at net.minecraft.network.play.client.C01PacketChatMessage.func_148833_a(C01PacketChatMessage.java:53) [ir.class:?]
at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:244) [ej.class:?]
at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:173) [nc.class:?]
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:980) [MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:430) [lt.class:?]
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:798) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:658) [MinecraftServer.class:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_77]

Si le problème vient de ce que j'ai dit, pourriez vous me passer la bonne config? Afin de ne pas perdre mes données