Graves console error

[23:09:40] [Server thread/INFO]: Sinuce issued server command: /plugman reload graves
[23:09:40] [Server thread/INFO]: [Graves] Disabling Graves v10.0
[23:09:42] [Server thread/INFO]: [Graves] Enabling Graves v10.0
[23:09:42] [Server thread/INFO]: [Graves] Activating Secret Cookies!!
[23:09:43] [Server thread/ERROR]: Could not pass event PlayerDeathEvent to Graves v10.0
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:509) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:494) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at org.bukkit.craftbukkit.v1_7_R4.event.CraftEventFactory.callPlayerDeathEvent(CraftEventFactory.java:397) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.EntityPlayer.die(EntityPlayer.java:386) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.EntityLiving.damageEntity(EntityLiving.java:745) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.EntityHuman.damageEntity(EntityHuman.java:765) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.EntityPlayer.damageEntity(EntityPlayer.java:465) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.EntityMonster.n(EntityMonster.java:100) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.EntityCaveSpider.n(SourceFile:24) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.EntityMonster.a(EntityMonster.java:135) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.EntitySpider.a(EntitySpider.java:87) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.EntityCreature.bq(EntityCreature.java:67) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.EntityLiving.e(EntityLiving.java:1553) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.EntityInsentient.e(EntityInsentient.java:294) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.EntityMonster.e(EntityMonster.java:21) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.EntityLiving.h(EntityLiving.java:1409) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.EntityInsentient.h(EntityInsentient.java:155) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.EntityMonster.h(EntityMonster.java:25) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.EntitySpider.h(EntitySpider.java:18) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.World.entityJoinedWorld(World.java:1620) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.World.playerJoinedWorld(World.java:1595) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.World.tickEntities(World.java:1460) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.WorldServer.tickEntities(WorldServer.java:516) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:706) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:289) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
Caused by: java.lang.NullPointerException
	at me.flamboo.graves.Graves.onPlayerDeath(Graves.java:141) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_72]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[?:1.7.0_72]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_72]
	at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_72]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:298) ~[spigot.jar:git-Spigot-1.7.9-R0.2-207-g03373bb]
	... 29 more
[23:09:47] [Server thread/INFO]: [L][Friendly]flamboo: you dont have too
[23:09:50] [Server thread/INFO]: Palle05 lost connection: Disconnected
[23:09:51] [Thread-657/INFO]: [PlayerSQL] Save player 09cf3299-a990-42b6-aa97-8c93369f630c done!
[23:09:58] [Thread-4/INFO]: Stopping server