Solved An internal error occured - command

Hi, anybody can help me please ?
When I perform the command I have "An internal error occured..."
Mc 1.7.9, first time I use the plugin !
[00:23:51] [Server thread/INFO]: to175 issued server command: /landlord map
[00:23:53] [Server thread/INFO]: to175 issued server command: /landlord claim
[00:23:53] [Server thread/ERROR]: null
org.bukkit.command.CommandException Unhandled exception executing command 'landlord' in plugin Landlord v1.2
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-b3084jnks]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:180) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-b3084jnks]
at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchCommand(CraftServer.java:701) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-b3084jnks]
at net.minecraft.server.v1_7_R3.PlayerConnection.handleCommand(PlayerConnection.java:956) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-b3084jnks]
at net.minecraft.server.v1_7_R3.PlayerConnection.a(PlayerConnection.java:817) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-b3084jnks]
at net.minecraft.server.v1_7_R3.PacketPlayInChat.a(PacketPlayInChat.java:28) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-b3084jnks]
at net.minecraft.server.v1_7_R3.PacketPlayInChat.handle(PacketPlayInChat.java:47) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-b3084jnks]
at net.minecraft.server.v1_7_R3.NetworkManager.a(NetworkManager.java:157) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-b3084jnks]
at net.minecraft.server.v1_7_R3.ServerConnection.c(SourceFile:134) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-b3084jnks]
at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:667) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-b3084jnks]
at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:260) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-b3084jnks]
at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:558) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-b3084jnks]
at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:469) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-b3084jnks]
at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [craftbukkit.jar:git-Bukkit-1.7.9-R0.1-b3084jnks]
Caused by: java.lang.NoSuchMethodError com.sk89q.worldguard.protection.regions.ProtectedRegion.getIntersectingRegions(Ljava/util/ListLjava/util/List;
at com.jcdesimp.landlord.pluginHooks.WorldguardHandler.canClaim(WorldguardHandler.java:51) ~[?:?]
at com.jcdesimp.landlord.LandlordCommandExecutor.landlord_claim(LandlordCommandExecutor.java:269) ~[?:?]
at com.jcdesimp.landlord.LandlordCommandExecutor.onCommand(LandlordCommandExecutor.java:61) ~[?:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[craftbukkit.jar:git-Bukkit-1.7.9-R0.1-b3084jnks]
... 13 more

 

It seems that you use WorldGuard 6.0 (Beta). Make sure that you use WorldGuard 5.9, since update 6.0 has a new region API which is not fully compatible with 5.9.

 

JWhy thanks, author answered me :

So ... I have downgraded to Worldguard 5.9 AND THAT DOES NOT WORK ANYMORE

 

To175: Could you post an excerpt of your server.log to PasteBin, please?

 

WTF it works now... I did nothing