CRASH REPORT (ERROR)

=============================== GM ERROR LOG ===============================
= ERROR REPORT START - Pre2.14.1.3 FINAL (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:590)
    at org.anjocaido.groupmanager.dataholder.WorldDataHolder.loadGroups(WorldDataHolder.java:510)
    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:179)
    at org.anjocaido.groupmanager.GroupManager.onEnable(GroupManager.java:103)
    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:316)
    at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:368)
    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:410)
    at org.bukkit.craftbukkit.v1_7_R4.CraftServer.loadPlugin(CraftServer.java:415)
    at org.bukkit.craftbukkit.v1_7_R4.CraftServer.enablePlugins(CraftServer.java:349)
    at net.minecraft.server.MinecraftServer.func_71243_i(MinecraftServer.java:500)
    at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:474)
    at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:434)
    at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:335)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:620)
    at java.lang.Thread.run(Unknown Source)
Caused by: while scanning for the next token
found character     '\t' that cannot start any token
 in "<reader>", line 83, column 6:
        -   discoarmor.toggle
         ^

    at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:358)
    at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:179)
    at org.yaml.snakeyaml.parser.ParserImpl$ParseIndentlessSequenceEntry.produce(ParserImpl.java:537)
    at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:161)
    at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:146)
    at org.yaml.snakeyaml.composer.Composer.composeSequenceNode(Composer.java:203)
    at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:158)
    at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:237)
    at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:160)
    at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:237)
    at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:160)
    at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:237)
    at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:160)
    at org.yaml.snakeyaml.composer.Composer.composeDocument(Composer.java:123)
    at org.yaml.snakeyaml.composer.Composer.getSingleNode(Composer.java:106)
    at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:121)
    at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:480)
    at org.yaml.snakeyaml.Yaml.load(Yaml.java:423)
    at org.anjocaido.groupmanager.dataholder.WorldDataHolder.loadGroups(WorldDataHolder.java:585)
    ... 20 more