KFactions errror

<font color=blue><em>Here is right before the error, taking my two free claims:</em></font>
2012-12-19 13:48:51 [INFO] [f] Da_Blackman created new faction Boss!
2012-12-19 13:50:33 [INFO] [f] Da_Blackman of faction Boss claimed land
2012-12-19 13:50:40 [INFO] [f] Da_Blackman of faction Boss claimed land
2012-12-19 13:50:45 [SEVERE] null

<strong>The actual error:</strong>
<font color=red>org.bukkit.command.CommandException: Unhandled exception executing command 'f' in plugin KFactions v1.0.134
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:42)
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:166)
    at forge.bukkit.ForgeCommandMap.dispatch(ForgeCommandMap.java:55)
    at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:506)
    at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:831)
    at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:787)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:769)
    at net.minecraft.server.Packet3Chat.handle(Packet3Chat.java:34)
    at net.minecraft.server.NetworkManager.b(NetworkManager.java:251)
    at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:106)
    at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:82)
    at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:569)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:457)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
Caused by: java.util.IllegalFormatConversionException: d != java.lang.Double
    at java.util.Formatter$FormatSpecifier.failConversion(Unknown Source)
    at java.util.Formatter$FormatSpecifier.printInteger(Unknown Source)
    at java.util.Formatter$FormatSpecifier.print(Unknown Source)
    at java.util.Formatter.format(Unknown Source)
    at java.util.Formatter.format(Unknown Source)
    at java.lang.String.format(Unknown Source)
    at com.kmcguire.KFactions.P.onCommand(P.java:3587)
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40)
    ... 13 more</font>