Hardcore Wither doesn't spawn at all
This is the error that appears in the fml-client-latest.log file
[20:38:45] [Server thread/ERROR] [FML/]: Exception caught during firing event net.minecraftforge.event.entity.EntityJoinWorldEvent@da2433f: java.lang.NullPointerException at thor12022.hardcorewither.wither.WitherHandler.onSpawnMob(WitherHandler.java:110) ~[WitherHandler.class:1.10.2-2.1.3-beta-9fa0986] at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_315_WitherHandler_onSpawnMob_EntityJoinWorldEvent.invoke(.dynamic) ~[?:?] at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) ~[ASMEventHandler.class:?] at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:185) [EventBus.class:?] at net.minecraft.world.World.func_72838_d(World.java:1129) [aid.class:?] at net.minecraft.world.WorldServer.func_72838_d(WorldServer.java:1063) [ls.class:?] at net.minecraft.block.BlockSkull.func_180679_a(BlockSkull.java:212) [aoy.class:?] at net.minecraft.item.ItemSkull.func_180614_a(ItemSkull.java:112) [aez.class:?] at net.minecraftforge.common.ForgeHooks.onPlaceItemIntoWorld(ForgeHooks.java:771) [ForgeHooks.class:?] at net.minecraft.item.ItemStack.func_179546_a(ItemStack.java:144) [adz.class:?] at net.minecraft.server.management.PlayerInteractionManager.func_187251_a(PlayerInteractionManager.java:483) [lv.class:?] at net.minecraft.network.NetHandlerPlayServer.func_184337_a(NetHandlerPlayServer.java:679) [me.class:?] at net.minecraft.network.play.client.CPacketPlayerTryUseItemOnBlock.func_148833_a(SourceFile:55) [jj.class:?] at net.minecraft.network.play.client.CPacketPlayerTryUseItemOnBlock.func_148833_a(SourceFile:11) [jj.class:?] at net.minecraft.network.PacketThreadUtil$1.run(SourceFile:13) [fl$1.class:?] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_112] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_112] at net.minecraft.util.Util.func_181617_a(SourceFile:45) [h.class:?] at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:668) [MinecraftServer.class:?] at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:613) [MinecraftServer.class:?] at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:240) [bzl.class:?] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471) [MinecraftServer.class:?] at java.lang.Thread.run(Thread.java:745) [?:1.8.0_112] [20:38:45] [Server thread/ERROR] [FML/]: Index: 10 Listeners: [20:38:45] [Server thread/ERROR] [FML/]: 0: HIGHEST [20:38:45] [Server thread/ERROR] [FML/]: 1: ASM: net.minecraftforge.common.ForgeInternalHandler@40c31978 onEntityJoinWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 2: NORMAL [20:38:45] [Server thread/ERROR] [FML/]: 3: ASM: biomesoplenty.common.handler.SheepEventHandler@6987695e onEntityJoin(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 4: ASM: amerifrance.guideapi.util.EventHandler@49f50482 onPlayerJoinWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 5: ASM: WayofTime.bloodmagic.util.handler.event.LivingArmourHandler@2ff1f0f onEntityJoinedWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 6: ASM: WayofTime.bloodmagic.util.handler.event.MigrateNetworkDataHandler@1f4367ef playerJoin(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 7: ASM: lumien.bloodmoon.handler.BloodmoonEventHandler@110e131 playerJoinedWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 8: ASM: com.brandon3055.brandonscore.client.BCClientEventHandler@23c2719f joinWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 9: ASM: com.rwtema.extrautils2.blocks.BlockCursedEarth$EventHandler@76ce59a9 spawnInWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 10: ASM: thor12022.hardcorewither.wither.WitherHandler@513d2f2d onSpawnMob(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 11: ASM: atomicstryker.infernalmobs.client.InfernalMobsClient@5e616ce2 onEntityJoinedWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 12: ASM: radixcore.core.RadixEvents@f7a7371 entitySpawnedEvent(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 13: ASM: radixcore.core.RadixEvents@29e50dc entitySpawnedEvent(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 14: ASM: mca.core.forge.EventHooksForge@70b7bc13 entityJoinedWorldEventHandler(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 15: ASM: com.vanhal.progressiveautomation.events.EventPlayers@d97736 onJoin(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 16: ASM: moze_intel.projecte.events.PlayerEvents@3b291937 onEntityJoinWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 17: ASM: portablejim.veinminer.core.EntityDropHook@75e3fc71 tryAddEntity(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 18: ASM: blusunrize.immersiveengineering.common.EventHandler@943ed9f onEntityJoiningWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 19: ASM: mezz.jei.ProxyCommonClient@41884d98 onEntityJoinedWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 20: ASM: com.enderio.core.common.handlers.XPBoostHandler@37d58380 handleArrowFire(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 21: ASM: atomicstryker.infernalmobs.common.EntityEventHandler@31003c55 onEntityJoinedWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 22: ASM: gr8pefish.ironbackpacks.events.ForgeEventHandler@706d958 onEntityJoinWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 23: ASM: mcjty.rftoolsdim.ForgeEventHandlers@76e167bd onEntityJoinWorldEvent(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 24: ASM: com.rwtema.extrautils2.villagers.EntityAINinjaPoof$Handler@38ec716b a(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V [20:38:45] [Server thread/ERROR] [FML/]: 25: LOW [20:38:45] [Server thread/ERROR] [FML/]: 26: ASM: com.brandon3055.brandonscore.handlers.BCEventHandler@3b4f6536 entityJoinWorld(Lnet/minecraftforge/event/entity/EntityJoinWorldEvent;)V