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java.lang.NullPointerException: Ticking entity	at net.minecraft.network.datasync.EntityDataManager.func_187225_a(SourceFile:116)	at net.minecraft.entity.projectile.EntityArrow.func_70241_g(SourceFile:555)	at org.blockartistry.mod.DynSurround.client.DamageEffectHandler.onLivingHurt(DamageEffectHandler.java:119)	at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_290_DamageEffectHandler_onLivingHurt_LivingHurtEvent.invoke(.dynamic)	at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:72)	at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:168)	at net.minecraftforge.common.ForgeHooks.onLivingHurt(ForgeHooks.java:502)	at net.minecraft.entity.EntityLivingBase.func_70665_d(EntityLivingBase.java:1296)	at net.minecraft.entity.EntityLivingBase.func_70097_a(EntityLivingBase.java:890)	at com.grim3212.mc.pack.core.entity.EntityProjectile.func_184549_a(EntityProjectile.java:336)	at com.grim3212.mc.pack.core.entity.EntityProjectile.func_70071_h_(EntityProjectile.java:261)	at com.grim3212.mc.pack.tools.entity.EntityRayw.func_70071_h_(EntityRayw.java:41)	at net.minecraft.world.World.func_72866_a(World.java:1962)	at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:837)	at net.minecraft.world.World.func_72870_g(World.java:1932)	at net.minecraft.world.World.func_72939_s(World.java:1748)	at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:618)	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:709)	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:613)	at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:240)	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471)	at java.lang.Thread.run(Thread.java:745)