World guard

[17:41:46] [Server thread/WARN]: [WorldGuard] WorldGuard encountered an unexpected error
java.lang.NullPointerException
at com.sk89q.worldguard.bukkit.RegionContainer.getSaveFailures(RegionContainer.java:254) ~[WorldGuard.jar:6.1]
at com.sk89q.worldguard.bukkit.commands.region.RegionCommandsBase.warnAboutSaveFailures(RegionCommandsBase.java:297) ~[WorldGuard.jar:6.1]
at com.sk89q.worldguard.bukkit.commands.region.RegionCommands.info(RegionCommands.java:342) ~[WorldGuard.jar:6.1]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]
at com.sk89q.minecraft.util.commands.CommandsManager.invokeMethod(CommandsManager.java:528) ~[worldedit-bukkit-6.0-beta-01.jar:?]
at com.sk89q.minecraft.util.commands.CommandsManager.executeMethod(CommandsManager.java:516) ~[worldedit-bukkit-6.0-beta-01.jar:?]
at com.sk89q.minecraft.util.commands.CommandsManager.executeMethod(CommandsManager.java:471) ~[worldedit-bukkit-6.0-beta-01.jar:?]
at com.sk89q.minecraft.util.commands.CommandsManager.execute(CommandsManager.java:409) ~[worldedit-bukkit-6.0-beta-01.jar:?]
at com.sk89q.worldguard.bukkit.WorldGuardPlugin.onCommand(WorldGuardPlugin.java:260) [WorldGuard.jar:6.1]
at com.sk89q.bukkit.util.DynamicPluginCommand.execute(DynamicPluginCommand.java:54) [worldedit-bukkit-6.0-beta-01.jar:?]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:140) [craftbukkit-1.8.8.jar:git-Bukkit-e1ebe52]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:620) [craftbukkit-1.8.8.jar:git-Bukkit-e1ebe52]
at net.minecraft.server.v1_8_R3.PlayerConnection.handleCommand(PlayerConnection.java:1106) [craftbukkit-1.8.8.jar:git-Bukkit-e1ebe52]
at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:966) [craftbukkit-1.8.8.jar:git-Bukkit-e1ebe52]
at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(SourceFile:37) [craftbukkit-1.8.8.jar:git-Bukkit-e1ebe52]
at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(SourceFile:9) [craftbukkit-1.8.8.jar:git-Bukkit-e1ebe52]
at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [craftbukkit-1.8.8.jar:git-Bukkit-e1ebe52]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_121]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_121]
at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [craftbukkit-1.8.8.jar:git-Bukkit-e1ebe52]
at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:673) [craftbukkit-1.8.8.jar:git-Bukkit-e1ebe52]
at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:335) [craftbukkit-1.8.8.jar:git-Bukkit-e1ebe52]
at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:629) [craftbukkit-1.8.8.jar:git-Bukkit-e1ebe52]
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:537) [craftbukkit-1.8.8.jar:git-Bukkit-e1ebe52]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]