MystCrack Crash3 Log

2013-02-17 15:02:13 [SEVERE] t: Ticking entity
2013-02-17 15:02:13 [SEVERE] 	at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:962)
2013-02-17 15:02:13 [SEVERE] 	at ho.r(DedicatedServer.java:309)
2013-02-17 15:02:13 [SEVERE] 	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:857)
2013-02-17 15:02:13 [SEVERE] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:744)
2013-02-17 15:02:13 [SEVERE] 	at fy.run(ThreadMinecraftServer.java:16)
2013-02-17 15:02:13 [SEVERE] Caused by: java.lang.NullPointerException
2013-02-17 15:02:13 [SEVERE] 	at org.bukkit.craftbukkit.v1_4_R1.event.CraftEventFactory.callPigZapEvent(CraftEventFactory.java:424)
2013-02-17 15:02:13 [SEVERE] 	at pd.a(EntityPig.java:224)
2013-02-17 15:02:13 [SEVERE] 	at com.xcompwiz.mystcraft.entity.EntityLightningBoltAdv.j_(EntityLightningBoltAdv.java:125)
2013-02-17 15:02:13 [SEVERE] 	at yc.h(World.java:2391)
2013-02-17 15:02:13 [SEVERE] 	at in.h(WorldServer.java:701)
2013-02-17 15:02:13 [SEVERE] 	at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:956)
2013-02-17 15:02:13 [SEVERE] 	... 4 more
2013-02-17 15:02:13 [SEVERE] Encountered an unexpected exception t
t: Ticking entity
	at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:962)
	at ho.r(DedicatedServer.java:309)
	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:857)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:744)
	at fy.run(ThreadMinecraftServer.java:16)
Caused by: java.lang.NullPointerException
	at org.bukkit.craftbukkit.v1_4_R1.event.CraftEventFactory.callPigZapEvent(CraftEventFactory.java:424)
	at pd.a(EntityPig.java:224)
	at com.xcompwiz.mystcraft.entity.EntityLightningBoltAdv.j_(EntityLightningBoltAdv.java:125)
	at yc.h(World.java:2391)
	at in.h(WorldServer.java:701)
	at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:956)
	... 4 more
2013-02-17 15:02:13 [SEVERE] This crash report has been saved to: /opt/mystcrack/./crash-reports/crash-2013-02-17_15.02.13-server.txt