Ballistics error

2013-04-16 18:53:00 [INFO] This server is running CraftBukkit version git-Bukkit-1.4.7-R1.0-94-g141dcf0-b2735jnks (MC: 1.5.1) (Implementing API version 1.5.1-R0.1)
2013-04-16 18:53:00 [SEVERE] Could not load 'plugins\BallisticsV1.2.jar' in folder 'plugins'
org.bukkit.plugin.InvalidDescriptionException: Invalid plugin.yml
	at org.bukkit.plugin.java.JavaPluginLoader.getPluginDescription(JavaPluginLoader.java:257)
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:132)
	at org.bukkit.craftbukkit.v1_5_R2.CraftServer.loadPlugins(CraftServer.java:239)
	at org.bukkit.craftbukkit.v1_5_R2.CraftServer.<init>(CraftServer.java:217)
	at net.minecraft.server.v1_5_R2.PlayerList.<init>(PlayerList.java:55)
	at net.minecraft.server.v1_5_R2.DedicatedPlayerList.<init>(SourceFile:11)
	at net.minecraft.server.v1_5_R2.DedicatedServer.init(DedicatedServer.java:105)
	at net.minecraft.server.v1_5_R2.MinecraftServer.run(MinecraftServer.java:379)
	at net.minecraft.server.v1_5_R2.ThreadServerApplication.run(SourceFile:573)
Caused by: mapping values are not allowed here
 in "<reader>", line 7, column 14:
       ballistics:
                 ^

	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchValue(ScannerImpl.java:733)
	at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:305)
	at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:179)
	at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingKey.produce(ParserImpl.java:563)
	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.composeMappingNode(Composer.java:230)
	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:411)
	at org.bukkit.plugin.PluginDescriptionFile.<init>(PluginDescriptionFile.java:42)
	at org.bukkit.plugin.java.JavaPluginLoader.getPluginDescription(JavaPluginLoader.java:252)
	... 8 more