[Fixed]GroupManager Save Error

What is your issue?
I can not save my GroupManager

How do i get this issue?
I attempt to do /mansave

Any Errors?
Yes

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Code:

17:05:09 [INFO] [PLAYER_COMMAND] Jasonsj10: /mansave
17:05:09 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'mans
ave' in plugin GroupManager v1.5 (Phoenix)
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:42)
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:16
3)
        at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:3
70)
        at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.
java:756)
        at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:721)

        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:714)
        at net.minecraft.server.Packet3Chat.a(Packet3Chat.java:33)
        at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:92)
        at net.minecraft.server.NetworkListenThread.a(SourceFile:108)
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:516)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:414)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
Caused by: java.lang.NullPointerException
        at org.anjocaido.groupmanager.dataholder.worlds.WorldsHolder.saveChanges
(WorldsHolder.java:222)
        at org.anjocaido.groupmanager.GroupManager.onCommand(GroupManager.java:1
526)
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:40)
        ... 12 more

I also get this when i stop the server

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Code:

17:14:56 [INFO] GroupManager - INFO - Scheduled Data Saving is disabled!
17:14:56 [SEVERE] Error occurred while disabling GroupManager v1.5 (Phoenix) (Is
 it up to date?): null
java.lang.NullPointerException
        at org.anjocaido.groupmanager.dataholder.worlds.WorldsHolder.saveChanges
(WorldsHolder.java:222)
        at org.anjocaido.groupmanager.GroupManager.onDisable(GroupManager.java:9
4)
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:190)
        at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoade
r.java:978)
        at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManag
er.java:296)
        at org.bukkit.plugin.SimplePluginManager.disablePlugins(SimplePluginMana
ger.java:289)
        at org.bukkit.craftbukkit.CraftServer.disablePlugins(CraftServer.java:17
7)
        at net.minecraft.server.MinecraftServer.stop(MinecraftServer.java:365)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:444)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
17:14:56 [INFO] Essentials: Using Permissions 3 based permissions.

Version of GroupManager:
I do not know. How can i see what version? I do not see the version command on
http://ess.khhq.net/wiki/Group_Manager/Commands#Permissions

Any Other information that we need to know?
Yes, It worked fine until now. I didn't change anything except Ranks in game but i did that before and it worked fine. this is just one of those random things

Yea i got bored so i made it into a question format. Hahah

Bump. Please i really need help. When i promote people it doesnt save. SO when i do /reload or /manload or restart the server it rollback to the last time it saved.

I attempted to reinstall GroupManager. Did not work. Cmon someone help me please.

Odd. i deleted one of my world's permissions and now it is fixed.

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