Description: Ticking memory connection

java.lang.NullPointerException: Ticking memory connection
	at net.minecraft.entity.DataWatcher.updateObject(DataWatcher.java:153)
	at net.minecraft.entity.EntityLivingBase.setHealth(EntityLivingBase.java:814)
	at net.minecraft.entity.EntityLivingBase.<init>(EntityLivingBase.java:157)
	at net.minecraft.entity.EntityLiving.<init>(EntityLiving.java:78)
	at net.minecraft.entity.EntityCreature.<init>(EntityCreature.java:36)
	at com.wwy.mod.entities.EntityDataLoyalist.<init>(EntityDataLoyalist.java:44)
	at com.wwy.mod.items.MonsterPlacerDataLoyalist.onItemUse(MonsterPlacerDataLoyalist.java:32)
	at net.minecraftforge.common.ForgeHooks.onPlaceItemIntoWorld(ForgeHooks.java:507)
	at net.minecraft.item.ItemStack.tryPlaceItemIntoWorld(ItemStack.java:142)
	at net.minecraft.server.management.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:422)
	at net.minecraft.network.NetHandlerPlayServer.processPlayerBlockPlacement(NetHandlerPlayServer.java:593)
	at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:74)
	at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:122)
	at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:241)
	at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:182)
	at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:726)
	at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:614)
	at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:118)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:485)
	at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:752)


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

-- Head --
Stacktrace:
	at net.minecraft.entity.DataWatcher.updateObject(DataWatcher.java:153)
	at net.minecraft.entity.EntityLivingBase.setHealth(EntityLivingBase.java:814)
	at net.minecraft.entity.EntityLivingBase.<init>(EntityLivingBase.java:157)
	at net.minecraft.entity.EntityLiving.<init>(EntityLiving.java:78)
	at net.minecraft.entity.EntityCreature.<init>(EntityCreature.java:36)
	at com.wwy.mod.entities.EntityDataLoyalist.<init>(EntityDataLoyalist.java:44)
	at com.wwy.mod.items.MonsterPlacerDataLoyalist.onItemUse(MonsterPlacerDataLoyalist.java:32)
	at net.minecraftforge.common.ForgeHooks.onPlaceItemIntoWorld(ForgeHooks.java:507)
	at net.minecraft.item.ItemStack.tryPlaceItemIntoWorld(ItemStack.java:142)
	at net.minecraft.server.management.ItemInWorldManager.activateBlockOrUseItem(ItemInWorldManager.java:422)
	at net.minecraft.network.NetHandlerPlayServer.processPlayerBlockPlacement(NetHandlerPlayServer.java:593)
	at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:74)
	at net.minecraft.network.play.client.C08PacketPlayerBlockPlacement.processPacket(C08PacketPlayerBlockPlacement.java:122)
	at net.minecraft.network.NetworkManager.processReceivedPackets(NetworkManager.java:241)

-- Ticking connection --
Details:
	Connection: net.minecraft.network.NetworkManager@474f7b7
Stacktrace:
	at net.minecraft.network.NetworkSystem.networkTick(NetworkSystem.java:182)
	at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:726)
	at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:614)
	at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:118)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:485)
	at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:752)