Group Manager Help

Hello i own a 1.6.4 server (McKoalaKraft) and ive got all my ranks and permissions ready made with notepad++ and when i put them in and reload my server i get this error please help we need it desperatly! Thanks, Jake.
2013-11-06 08-16
=============================== GM ERROR LOG ===============================
= ERROR REPORT START - 2.0 (2.12.1) (Phoenix) =

java.lang.IllegalArgumentException: The following file couldn't pass on Parser.
plugins/GroupManager/worlds/world/groups.yml
at org.anjocaido.groupmanager.dataholder.WorldDataHolder.loadGroups(WorldDataHolder.java:496)
at org.anjocaido.groupmanager.dataholder.WorldDataHolder.loadGroups(WorldDataHolder.java:416)
at org.anjocaido.groupmanager.dataholder.worlds.WorldsHolder.loadWorld(WorldsHolder.java:678)
at org.anjocaido.groupmanager.dataholder.worlds.WorldsHolder.loadWorld(WorldsHolder.java:640)
at org.anjocaido.groupmanager.dataholder.worlds.WorldsHolder.initialWorldLoading(WorldsHolder.java:110)
at org.anjocaido.groupmanager.dataholder.worlds.WorldsHolder.initialLoad(WorldsHolder.java:100)
at org.anjocaido.groupmanager.dataholder.worlds.WorldsHolder.resetWorldsHolder(WorldsHolder.java:92)
at org.anjocaido.groupmanager.dataholder.worlds.WorldsHolder.<init>(WorldsHolder.java:59)
at org.anjocaido.groupmanager.GroupManager.onEnable(GroupManager.java:169)
at org.anjocaido.groupmanager.GroupManager.onEnable(GroupManager.java:93)
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:217)
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:457)
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:382)
at org.bukkit.craftbukkit.v1_6_R3.CraftServer.loadPlugin(CraftServer.java:288)
at org.bukkit.craftbukkit.v1_6_R3.CraftServer.enablePlugins(CraftServer.java:270)
at org.bukkit.craftbukkit.v1_6_R3.CraftServer.reload(CraftServer.java:618)
at org.bukkit.Bukkit.reload(Bukkit.java:277)
at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:24)
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:192)
at org.bukkit.craftbukkit.v1_6_R3.CraftServer.dispatchCommand(CraftServer.java:532)
at net.minecraft.server.v1_6_R3.PlayerConnection.handleCommand(PlayerConnection.java:986)
at net.minecraft.server.v1_6_R3.PlayerConnection.chat(PlayerConnection.java:897)
at net.minecraft.server.v1_6_R3.PlayerConnection.a(PlayerConnection.java:838)
at net.minecraft.server.v1_6_R3.Packet3Chat.handle(SourceFile:49)
at org.spigotmc.netty.NettyNetworkManager.b(NettyNetworkManager.java:230)
at net.minecraft.server.v1_6_R3.PlayerConnection.e(PlayerConnection.java:117)
at net.minecraft.server.v1_6_R3.ServerConnection.b(SourceFile:37)
at org.spigotmc.netty.NettyServerConnection.b(NettyServerConnection.java:132)
at net.minecraft.server.v1_6_R3.MinecraftServer.t(MinecraftServer.java:594)
at net.minecraft.server.v1_6_R3.DedicatedServer.t(DedicatedServer.java:240)
at net.minecraft.server.v1_6_R3.MinecraftServer.s(MinecraftServer.java:483)
at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:415)
at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583)
Caused by: while scanning for the next token
found character '\t(TAB)' that cannot start any token. (Do not use \t(TAB) for indentation)
in 'reader', line 231, column 1:

^

at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:420)
at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:226)
at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingKey.produce(ParserImpl.java:558)
at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:158)
at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:143)
at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:230)
at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:159)
at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:237)
at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:159)
at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:237)
at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:159)
at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:237)
at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:159)
at org.yaml.snakeyaml.composer.Composer.composeDocument(Composer.java:122)
at org.yaml.snakeyaml.composer.Composer.getSingleNode(Composer.java:105)
at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:120)
at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:481)
at org.yaml.snakeyaml.Yaml.load(Yaml.java:424)
at org.anjocaido.groupmanager.dataholder.WorldDataHolder.loadGroups(WorldDataHolder.java:491)
... 32 more

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