Error

[SEVERE] Cannot load plugins/AutoMessage/config.yml
org.bukkit.configuration.InvalidConfigurationException: expected '<document start>', but found BlockMappingStart
in 'string', line 13, column 1:
settings:
^

at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:55)
at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:138)
at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:105)
at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:175)
at org.bukkit.plugin.java.JavaPlugin.reloadConfig(JavaPlugin.java:117)
at com.TeamNovus.AutoMessage.AutoMessage.loadConfig(AutoMessage.java:56)
at com.TeamNovus.AutoMessage.Commands.PluginCommands.onReloadCmd(PluginCommands.java:24)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.TeamNovus.AutoMessage.Commands.Common.CommandManager.execute(CommandManager.java:93)
at com.TeamNovus.AutoMessage.Commands.Common.BaseCommandExecutor.onCommand(BaseCommandExecutor.java:58)
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:192)
at org.bukkit.craftbukkit.v1_6_R2.CraftServer.dispatchCommand(CraftServer.java:527)
at org.bukkit.craftbukkit.v1_6_R2.CraftServer.dispatchServerCommand(CraftServer.java:516)
at net.minecraft.server.v1_6_R2.DedicatedServer.ar(DedicatedServer.java:275)
at net.minecraft.server.v1_6_R2.DedicatedServer.t(DedicatedServer.java:240)
at net.minecraft.server.v1_6_R2.MinecraftServer.s(MinecraftServer.java:481)
at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java:413)
at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:582)
Caused by: expected '<document start>', but found BlockMappingStart
in 'string', line 13, column 1:
settings:
^

at org.yaml.snakeyaml.parser.ParserImpl$ParseDocumentStart.produce(ParserImpl.java:225)
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.getSingleNode(Composer.java:108)
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:400)
at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:53)
... 21 more
2013-09-14 17:17:38 [INFO] Configuration reloaded from disk!