Battle Arena error

2013-07-12 09:29:05 [INFO] [BattleTracker] Enabling BattleTracker v2.5.4.0
2013-07-12 09:29:05 [INFO] [BattleTracker v2.5.4.0] enabled!
2013-07-12 09:29:05 [INFO] [ImprovedFakeOp] Enabling ImprovedFakeOp v0.1
2013-07-12 09:29:05 [INFO] [BattleArena] Enabling BattleArena v3.9.1.3
2013-07-12 09:29:05 [INFO] [BattleArena] v3.9.1.3 enabling!
2013-07-12 09:29:05 [INFO] [BattleArena] Multiverse-Core detected. Implementing teleport/gamemode workarounds
2013-07-12 09:29:05 [INFO] [BattleArena] no additional Arena modules
2013-07-12 09:29:05 [SEVERE] classes.Wizzard.items couldnt parse item {golden_sword=1}
2013-07-12 09:29:05 [INFO] [BattleArena] registering classes: Blade, Axe-man, Archer, Wizzard, Beast, Slick
2013-07-12 09:29:06 [INFO] [BattleArena] Loaded Skirmish params
2013-07-12 09:29:06 [INFO] [BattleArena] No arenas found for   arenatype=Skirmish  cs=
2013-07-12 09:29:06 [INFO] [BattleArena] Loaded FreeForAll params
2013-07-12 09:29:06 [INFO] [BattleArena] No arenas found for   arenatype=FreeForAll  cs=
2013-07-12 09:29:06 [INFO] [BattleArena] Loaded Arena params
2013-07-12 09:29:06 [INFO] [BattleArena] No arenas found for   arenatype=Arena  cs=
2013-07-12 09:29:06 [INFO] [BattleArena] Loaded DeathMatch params
2013-07-12 09:29:06 [INFO] [BattleArena] No arenas found for   arenatype=DeathMatch  cs=
2013-07-12 09:29:06 [INFO] [BattleArena] Loaded Colosseum params
2013-07-12 09:29:06 [INFO] [BattleArena] Loaded Colosseum arenas: tower, pandemonium
2013-07-12 09:29:06 [INFO] [BattleArena] Loaded Battleground params
2013-07-12 09:29:06 [INFO] [BattleArena] Loaded Battleground arenas: grimm
2013-07-12 09:29:06 [SEVERE] Couldnt find arenaClass gladiator
2013-07-12 09:29:06 [INFO] [BattleArena] Loaded Duel params
2013-07-12 09:29:06 [INFO] [BattleArena] No arenas found for   arenatype=Duel  cs=
2013-07-12 09:29:06 [INFO] [BattleArena] Loaded Tourney params
2013-07-12 09:29:06 [SEVERE] Error occurred while enabling BattleArena v3.9.1.3 (Is it up to date?)
java.lang.NullPointerException
	at mc.alk.arena.serializers.StateFlagSerializer.loadContainerStates(StateFlagSerializer.java:54)
	at mc.alk.arena.BattleArena.onEnable(BattleArena.java:185)
	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:381)
	at org.bukkit.craftbukkit.v1_6_R2.CraftServer.loadPlugin(CraftServer.java:282)
	at org.bukkit.craftbukkit.v1_6_R2.CraftServer.enablePlugins(CraftServer.java:264)
	at net.minecraft.server.v1_6_R2.MinecraftServer.l(MinecraftServer.java:313)
	at net.minecraft.server.v1_6_R2.MinecraftServer.f(MinecraftServer.java:290)
	at net.minecraft.server.v1_6_R2.MinecraftServer.a(MinecraftServer.java:250)
	at net.minecraft.server.v1_6_R2.DedicatedServer.init(DedicatedServer.java:151)
	at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java:391)
	at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:582)
2013-07-12 09:29:06 [INFO] [ArenaPaintball] Enabling ArenaPaintball v1.1.3
2013-07-12 09:29:06 [INFO] [ArenaPaintball] Loaded Paintball params
2013-07-12 09:29:06 [INFO] [ArenaPaintball] Loaded Paintball arenas: thepit, houseofblueleaves, bunkerdown
2013-07-12 09:29:06 [INFO] [ArenaPaintball] v1.1.3 enabled!
2013-07-12 09:29:06 [INFO] [ArenaCTF] Enabling ArenaCTF v1.2.7
2013-07-12 09:29:06 [INFO] [ArenaCTF] Loaded CaptureTheFlag params
2013-07-12 09:29:06 [INFO] [ArenaCTF] Loaded CaptureTheFlag arenas: thepitctf, bunkerdownctf
2013-07-12 09:29:06 [INFO] [ArenaCTF] v1.2.7 enabled!