[SEVERE] Could not load 'plugins\BattleArena.jar' in folder 'plugins'
org.bukkit.plugin.InvalidDescriptionException: Invalid plugin.yml
	at org.bukkit.plugin.java.JavaPluginLoader.getPluginDescription(JavaPluginLoader.java:207)
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:132)
	at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:272)
	at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:250)
	at net.minecraft.server.PlayerList.<init>(PlayerList.java:52)
	at net.minecraft.server.DedicatedPlayerList.<init>(SourceFile:11)
	at net.minecraft.server.DedicatedServer.init(DedicatedServer.java:104)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:404)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:849)
Caused by: while scanning for the next token
found character 	'\t' that cannot start any token
 in "<reader>", line 2, column 17:
    version: 3.7.9.4
                    ^

	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$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:202)
	... 8 more