Problem/Bug WorldGuard Issues

every time i try to define a reigon i get this error in console WTH IS THIS

Code:

23.05 01:35:31 [Server] INFO at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [custom.jar:git-Spigot-1.7.9-R0.2-205-g0a049fa] 23.05 01:35:31 [Server] INFO at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490) [custom.jar:git-Spigot-1.7.9-R0.2-205-g0a049fa] 23.05 01:35:31 [Server] INFO at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584) [custom.jar:git-Spigot-1.7.9-R0.2-205-g0a049fa] 23.05 01:35:31 [Server] INFO at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:289) [custom.jar:git-Spigot-1.7.9-R0.2-205-g0a049fa] 23.05 01:35:31 [Server] INFO at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:734) [custom.jar:git-Spigot-1.7.9-R0.2-205-g0a049fa] 23.05 01:35:31 [Server] INFO at net.minecraft.server.v1_7_R4.ServerConnection.c(ServerConnection.java:81) [custom.jar:git-Spigot-1.7.9-R0.2-205-g0a049fa] 23.05 01:35:31 [Server] INFO at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:186) [custom.jar:git-Spigot-1.7.9-R0.2-205-g0a049fa] 23.05 01:35:31 [Server] INFO at net.minecraft.server.v1_7_R4.PacketPlayInChat.handle(PacketPlayInChat.java:65) [custom.jar:git-Spigot-1.7.9-R0.2-205-g0a049fa] 23.05 01:35:31 [Server] INFO at net.minecraft.server.v1_7_R4.PacketPlayInChat.a(PacketPlayInChat.java:28) [custom.jar:git-Spigot-1.7.9-R0.2-205-g0a049fa] 23.05 01:35:31 [Server] INFO at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:880) [custom.jar:git-Spigot-1.7.9-R0.2-205-g0a049fa] 23.05 01:35:31 [Server] INFO at net.minecraft.server.v1_7_R4.PlayerConnection.handleCommand(PlayerConnection.java:1043) [custom.jar:git-Spigot-1.7.9-R0.2-205-g0a049fa] 23.05 01:35:31 [Server] INFO at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCommand(CraftServer.java:767) [custom.jar:git-Spigot-1.7.9-R0.2-205-g0a049fa] 23.05 01:35:31 [Server] INFO at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:181) [custom.jar:git-Spigot-1.7.9-R0.2-205-g0a049fa] 23.05 01:35:31 [Server] INFO at com.sk89q.bukkit.util.DynamicPluginCommand.execute(DynamicPluginCommand.java:52) [WorldEdit.jar:5.6.3] 23.05 01:35:31 [Server] INFO at com.sk89q.worldguard.bukkit.WorldGuardPlugin.onCommand(WorldGuardPlugin.java:300) [worldguard-6.0.0-beta-02.jar:6.0.0-beta-02] 23.05 01:35:31 [Server] INFO at com.sk89q.minecraft.util.commands.CommandsManager.execute(CommandsManager.java:409) ~[WorldEdit.jar:5.6.3] 23.05 01:35:31 [Server] INFO at com.sk89q.minecraft.util.commands.CommandsManager.executeMethod(CommandsManager.java:475) ~[WorldEdit.jar:5.6.3] 23.05 01:35:31 [Server] INFO at com.sk89q.minecraft.util.commands.CommandsManager.executeMethod(CommandsManager.java:520) ~[WorldEdit.jar:5.6.3] 23.05 01:35:31 [Server] INFO at com.sk89q.minecraft.util.commands.CommandsManager.invokeMethod(CommandsManager.java:533) ~[WorldEdit.jar:5.6.3] 23.05 01:35:31 [Server] INFO at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_65] 23.05 01:35:31 [Server] INFO at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_65] 23.05 01:35:31 [Server] INFO at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_65] 23.05 01:35:31 [Server] INFO at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_65] 23.05 01:35:31 [Server] INFO at com.sk89q.worldguard.bukkit.commands.region.RegionCommands.define(RegionCommands.java:103) ~[worldguard-6.0.0-beta-02.jar:6.0.0-beta-02] 23.05 01:35:31 [Server] INFO at com.sk89q.worldguard.bukkit.commands.region.RegionCommandsBase.warnAboutSaveFailures(RegionCommandsBase.java:297) ~[worldguard-6.0.0-beta-02.jar:6.0.0-beta-02] 23.05 01:35:31 [Server] INFO at com.sk89q.worldguard.bukkit.RegionContainer.getSaveFailures(RegionContainer.java:254) ~[worldguard-6.0.0-beta-02.jar:6.0.0-beta-02] 23.05 01:35:31 [Server] INFO java.lang.NullPointerException 23.05 01:35:31 [Server] WARN [WorldGuard] WorldGuard encountered an unexpected error

HOW DO I FIX IT