Minecraftforge: The game crashed whilst exception in server tick loop The game crashed whilst exception in server tick loop Error: java.lang.IllegalArgumentException: Duplicate id value for 23!

06:38:27 | FML | Exception caught during firing event net.minecraftforge.event.entity.EntityEvent$EntityConstructing@47778cf6: java.lang.IllegalArgumentException: Duplicate id value for 23! at net.minecraft.entity.DataWatcher.func_75682_a(SourceFile:64) at com.tihyo.legends.entities.ExtendedLiving.(ExtendedLiving.java:22) at com.tihyo.legends.entities.ExtendedLiving.register(ExtendedLiving.java:31) at com.tihyo.legends.handlers.ExtendedPlayerEventHandler.onEntityConstructing(ExtendedPlayerEventHandler.java:39) at cpw.mods.fml.common.eventhandler.ASMEventHandler_49_ExtendedPlayerEventHandler_onEntityConstructing_EntityConstructing.invoke(.dynamic) at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54) at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:140) at net.minecraft.entity.Entity.(Entity.java:179) at net.minecraft.entity.EntityLivingBase.(EntityLivingBase.java:119) at jp.mc.ancientred.starminer.core.entity.EntityLivingGravitized.(EntityLivingGravitized.java:49) at net.minecraft.entity.EntityLiving.(EntityLiving.java:68) at net.minecraft.entity.EntityCreature.(SourceFile:23) at net.minecraft.entity.monster.EntityMob.(SourceFile:14) at com.fabiulu.farlanders.common.entity.EntityEnderGolem.(EntityEnderGolem.java:49) at com.fabiulu.farlanders.common.entity.EntityEnderGolem.(EntityEnderGolem.java:69) at com.fabiulu.farlanders.common.worldgen.WorldGenFarlanderHouse5.func_76484_a(WorldGenFarlanderHouse5.java:693) at com.fabiulu.farlanders.common.worldgen.FarlandersWorldGenerator.generateSurface(FarlandersWorldGenerator.java:132) at com.fabiulu.farlanders.common.worldgen.FarlandersWorldGenerator.generate(FarlandersWorldGenerator.java:22) at cpw.mods.fml.common.registry.GameRegistry.generateWorld(GameRegistry.java:112) at net.minecraft.world.gen.ChunkProviderServer.func_73153_a(ChunkProviderServer.java:280) at net.minecraft.world.chunk.Chunk.func_76624_a(Chunk.java:1055) at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:190) at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:131) at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101) at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:265) at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:78) at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:92) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387) at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)
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06:38:27 | FML | Index: 1 Listeners:
06:38:27 | FML | 0: NORMAL
06:38:27 | FML | 1: ASM: com.tihyo.legends.handlers.ExtendedPlayerEventHandler@2a209eef onEntityConstructing(Lnet/minecraftforge/event/entity/EntityEvent$EntityConstructing;)V
06:38:27 | FML | 2: ASM: mods.battlegear2.WeaponHookContainerClass@7fd35d4a onLivingConstructor(Lnet/minecraftforge/event/entity/EntityEvent$EntityConstructing;)V
06:38:27 | FML | 3: ASM: jp.mc.ancientred.starminer.core.common.SMCommonEventHandler@7cdb3de8 registerExtendedProperty(Lnet/minecraftforge/event/entity/EntityEvent$EntityConstructing;)V
06:38:27 | FML | 4: ASM: com.inventorypets.InventoryPetsEventHandler@44df3074 onEntityConstructing(Lnet/minecraftforge/event/entity/EntityEvent$EntityConstructing;)V
06:38:27 | net.minecraft.server.MinecraftServer | Encountered an unexpected exception java.lang.IllegalArgumentException: Duplicate id value for 23! at net.minecraft.entity.DataWatcher.func_75682_a(SourceFile:64) at com.tihyo.legends.entities.ExtendedLiving.(ExtendedLiving.java:22) at com.tihyo.legends.entities.ExtendedLiving.register(ExtendedLiving.java:31) at com.tihyo.legends.handlers.ExtendedPlayerEventHandler.onEntityConstructing(ExtendedPlayerEventHandler.java:39) at cpw.mods.fml.common.eventhandler.ASMEventHandler_49_ExtendedPlayerEventHandler_onEntityConstructing_EntityConstructing.invoke(.dynamic) at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54) at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:140) at net.minecraft.entity.Entity.(Entity.java:179) at net.minecraft.entity.EntityLivingBase.(EntityLivingBase.java:119) at jp.mc.ancientred.starminer.core.entity.EntityLivingGravitized.(EntityLivingGravitized.java:49) at net.minecraft.entity.EntityLiving.(EntityLiving.java:68) at net.minecraft.entity.EntityCreature.(SourceFile:23) at net.minecraft.entity.monster.EntityMob.(SourceFile:14) at com.fabiulu.farlanders.common.entity.EntityEnderGolem.(EntityEnderGolem.java:49) at com.fabiulu.farlanders.common.entity.EntityEnderGolem.(EntityEnderGolem.java:69) at com.fabiulu.farlanders.common.worldgen.WorldGenFarlanderHouse5.func_76484_a(WorldGenFarlanderHouse5.java:693) at com.fabiulu.farlanders.common.worldgen.FarlandersWorldGenerator.generateSurface(FarlandersWorldGenerator.java:132) at com.fabiulu.farlanders.common.worldgen.FarlandersWorldGenerator.generate(FarlandersWorldGenerator.java:22) at cpw.mods.fml.common.registry.GameRegistry.generateWorld(GameRegistry.java:112) at net.minecraft.world.gen.ChunkProviderServer.func_73153_a(ChunkProviderServer.java:280) at net.minecraft.world.chunk.Chunk.func_76624_a(Chunk.java:1055) at net.minecraft.world.gen.ChunkProviderServer.originalLoadChunk(ChunkProviderServer.java:190) at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:131) at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101) at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:265) at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:78) at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:92) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387) at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)
06:38:27 | net.minecraft.server.MinecraftServer | This crash report has been saved to: C:Users\betan\AppData\Roaming.minecraft\crash-reports\crash-2019-01-28_06.38.27-

Tryed asking the forge website. Didn't help...