Essentia Coil Crash

[theflogat]

Description: Ticking entity

java.lang.NullPointerException
at net.minecraft.entity.Entity.func_70091_d(Entity.java:744)
at net.minecraft.entity.EntityLivingBase.func_70612_e(EntityLivingBase.java:1691)
at net.minecraft.entity.EntityLivingBase.func_70636_d(EntityLivingBase.java:2033)
at net.minecraft.entity.EntityLiving.func_70636_d(EntityLiving.java:441)
at net.minecraft.entity.EntityAgeable.func_70636_d(SourceFile:93)
at net.minecraft.entity.passive.EntityAnimal.func_70636_d(SourceFile:32)
at net.minecraft.entity.passive.EntitySheep.func_70636_d(EntitySheep.java:94)
at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:1826)
at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:257)
at net.minecraft.world.World.func_72866_a(World.java:2350)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:719)
at net.minecraft.world.World.func_72870_g(World.java:2311)
at net.minecraft.world.World.func_72939_s(World.java:2157)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:550)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:668)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:587)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:129)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:484)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Stacktrace:
at net.minecraft.entity.Entity.func_70091_d(Entity.java:744)
at net.minecraft.entity.EntityLivingBase.func_70612_e(EntityLivingBase.java:1691)
at net.minecraft.entity.EntityLivingBase.func_70636_d(EntityLivingBase.java:2033)
at net.minecraft.entity.EntityLiving.func_70636_d(EntityLiving.java:441)
at net.minecraft.entity.EntityAgeable.func_70636_d(SourceFile:93)
at net.minecraft.entity.passive.EntityAnimal.func_70636_d(SourceFile:32)
at net.minecraft.entity.passive.EntitySheep.func_70636_d(EntitySheep.java:94)
at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:1826)
at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:257)
at net.minecraft.world.World.func_72866_a(World.java:2350)
at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:719)
at net.minecraft.world.World.func_72870_g(World.java:2311)