Help group manager dosen't work

Help group manager dosen't work when i start cmd it dosen't load any errors and i am using 1.3 server for bukkit and group manager is for 1.2.5 for now so i am not sure if it's that,and i tried typing
command in cmd for grup manger and it sad all commands are locked because of a error to type
/manload and it created a file with creash report
---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 8/6/12 7:26 AM
Description: Exception in server tick loop

org.bukkit.command.CommandException: Unhandled exception executing command 'manload' in plugin GroupManager v2.0.38 (Phoenix)
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:42)
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:168)
at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:490)
at org.bukkit.craftbukkit.CraftServer.dispatchServerCommand(CraftServer.java:486)
at net.minecraft.server.DedicatedServer.ah(DedicatedServer.java:248)
at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:213)
at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:472)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:404)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.IllegalArgumentException
at org.anjocaido.groupmanager.GroupManager.onEnable(GroupManager.java:230)
at org.anjocaido.groupmanager.GroupManager.onCommand(GroupManager.java:1702)
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40)
... 8 more
Caused by: java.lang.NullPointerException
at org.anjocaido.groupmanager.GroupManager.onEnable(GroupManager.java:163)
... 10 more

Relevant Details:
- Minecraft Version: 1.3.1
- Operating System: Windows Vista (x86) version 6.0
- Java Version: 1.7.0_05, Oracle Corporation
- Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
- Memory: 757319920 bytes (722 MB) / 1037959168 bytes (989 MB) up to 1037959168 bytes (989 MB)
- JVM Flags: 2 total; -Xmx1024M -Xms1024M
- Type: Dedicated Server
- Is Modded: Definitely; 'craftbukkit'
- Profiler Position: N/A (disabled)
- Player Count: 0 / 20; []
- World world Entities: 3 total; [EntityEnderCrystal['entity.EnderCrystal.name'/115, l='world', x=41.50, y=98.00, z=-6.50], EntityEnderCrystal['entity.EnderCrystal.name'/116, l='world', x=77.50, y=75.00, z=-20.50], EntityEnderCrystal['entity.EnderCrystal.name'/117, l='world', x=65.50, y=73.00, z=45.50]]
- World world Players: 0 total; []
- World world Chunk Stats: ServerChunkCache: 625 Drop: 0

group manager version 2.0.38 phoenix is disabled this is what i got in cmd

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

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