[06:58:23] [Server thread/INFO]: BEASTtothemax issued server command: /ps flag use allow
 [06:58:24] [Server thread/ERROR]: null
 org.bukkit.command.CommandException: Unhandled exception executing command 'ps' in plugin ProtectionStones v1.9j
     at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[skygrid.jar:git-Spigot-952179b-bbf72f3]
     at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[skygrid.jar:git-Spigot-952179b-bbf72f3]
     at org.bukkit.craftbukkit.v1_8_R1.CraftServer.dispatchCommand(CraftServer.java:646) ~[skygrid.jar:git-Spigot-952179b-bbf72f3]
     at net.minecraft.server.v1_8_R1.PlayerConnection.handleCommand(PlayerConnection.java:1115) [skygrid.jar:git-Spigot-952179b-bbf72f3]
     at net.minecraft.server.v1_8_R1.PlayerConnection.a(PlayerConnection.java:950) [skygrid.jar:git-Spigot-952179b-bbf72f3]
     at net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:26) [skygrid.jar:git-Spigot-952179b-bbf72f3]
     at net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:53) [skygrid.jar:git-Spigot-952179b-bbf72f3]
     at net.minecraft.server.v1_8_R1.PacketHandleTask.run(SourceFile:13) [skygrid.jar:git-Spigot-952179b-bbf72f3]
     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_31]
     at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_31]
     at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:683) [skygrid.jar:git-Spigot-952179b-bbf72f3]
     at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) [skygrid.jar:git-Spigot-952179b-bbf72f3]
     at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:623) [skygrid.jar:git-Spigot-952179b-bbf72f3]
     at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:526) [skygrid.jar:git-Spigot-952179b-bbf72f3]
     at java.lang.Thread.run(Thread.java:745) [?:1.8.0_31]
 Caused by: java.lang.NullPointerException
     at java.util.concurrent.ConcurrentHashMap.putVal(ConcurrentHashMap.java:1011) ~[?:1.8.0_31]
     at java.util.concurrent.ConcurrentHashMap.putAll(ConcurrentHashMap.java:1084) ~[?:1.8.0_31]
     at java.util.concurrent.ConcurrentHashMap.<init>(ConcurrentHashMap.java:852) ~[?:1.8.0_31]
     at com.sk89q.worldguard.protection.regions.ProtectedRegion.setFlags(ProtectedRegion.java:472) ~[?:?]
     at com.axeldios.ProtectionStones.ProtectionStones.onCommand(ProtectionStones.java:1296) ~[?:?]
     at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[skygrid.jar:git-Spigot-952179b-bbf72f3]
     ... 14 more