[WARNING] java.lang.NoSuchFieldException: aware

[WARNING] at java.lang.Class.getFieldImpl(Native Method)

[WARNING] at java.lang.Class.getField(Class.java:1081)

[WARNING] at com.songoda.ultimatestacker.core.utils.EntityUtils.<clinit>(EntityUtils.java:30)

[WARNING] at com.songoda.ultimatestacker.entity.EntityStack.handleSingleStackDeath(EntityStack.java:161)

[WARNING] at com.songoda.ultimatestacker.entity.EntityStack.onDeath(EntityStack.java:235)

[WARNING] at com.songoda.ultimatestacker.listeners.DeathListeners.onEntityDeath(DeathListeners.java:62)

[WARNING] at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor810.execute(Unknown Source)

[WARNING] at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:70)

[WARNING] at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78)

[WARNING] at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)

[WARNING] at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:513)

[WARNING] at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.callEntityDeathEvent(CraftEventFactory.java:397)

[WARNING] at net.minecraft.server.v1_12_R1.EntityLiving.die(EntityLiving.java:1148)

[WARNING] at net.minecraft.server.v1_12_R1.EntitySkeletonWither.die(EntitySkeletonWither.java:48)

[WARNING] at net.minecraft.server.v1_12_R1.EntityLiving.damageEntity(EntityLiving.java:983)

[WARNING] at net.minecraft.server.v1_12_R1.EntityMonster.damageEntity(EntityMonster.java:44)

[WARNING] at net.minecraft.server.v1_12_R1.EntityHuman.attack(EntityHuman.java:1028)

[WARNING] at net.minecraft.server.v1_12_R1.EntityPlayer.attack(EntityPlayer.java:1397)

[WARNING] at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1724)

[WARNING] at net.minecraft.server.v1_12_R1.PacketPlayInUseEntity.a(PacketPlayInUseEntity.java:49)

[WARNING] at net.minecraft.server.v1_12_R1.PacketPlayInUseEntity.a(PacketPlayInUseEntity.java:6)

[WARNING] at net.minecraft.server.v1_12_R1.PlayerConnectionUtils.lambda$ensureMainThread$0(PlayerConnectionUtils.java:14)

[WARNING] at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$$Lambda$1416.0000000039084BA0.run(Unknown Source)

[WARNING] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)

[WARNING] at java.util.concurrent.FutureTask.run(FutureTask.java:266)

[WARNING] at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46)

[WARNING] at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:850)

[WARNING] at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:423)

[WARNING] at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:774)

[WARNING] at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:666)

[WARNING] at java.lang.Thread.run(Thread.java:813)