Bukkit

What steps will reproduce the problem?
1. By killing prohibited sacred mark creature or mistake but no effect either positive or negative.
2. EntityDeathEvent bug
3.

What is the expected output? What do you see instead?

What version of the product are you using?
Spigot 1.8.8 / Gods 0.8.8 Beta

Do you have an error log of what happened?

Please provide any additional information below.

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{\colortbl ;\red0\green0\blue255;\red255\green0\blue0;}
\viewkind4\uc1\pard\cf1\fs18 9:34:54 [SEVERE] Could not pass event EntityDeathEvent to Gods v0.8.8\par
9:34:54 org.bukkit.event.EventException\par
\cf2 9:34:54 \tab at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:54 \tab at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:54 \tab at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:54 \tab at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:501) [paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:54 \tab at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:486) [paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:54 \tab at org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.callEntityDeathEvent(CraftEventFactory.java:378) [paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:54 \tab at net.minecraft.server.v1_8_R3.EntityLiving.die(EntityLiving.java:879) [paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:54 \tab at net.minecraft.server.v1_8_R3.EntityLiving.damageEntity(EntityLiving.java:817) [paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:54 \tab at net.minecraft.server.v1_8_R3.EntityHuman.attack(EntityHuman.java:1002) [paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:54 \tab at net.minecraft.server.v1_8_R3.EntityPlayer.attack(EntityPlayer.java:1086) [paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:54 \tab at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1382) [paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
\cf1 9:34:54 \tab at net.minecraft.server.v1_8_R3.PacketPlayInUseEntity.a(SourceFile:52) [paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:54 \tab at net.minecraft.server.v1_8_R3.PacketPlayInUseEntity.a(SourceFile:11) [paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:54 \tab at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
\cf2 9:34:55 \tab at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_66]\par
9:34:55 \tab at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_66]\par
\cf1 9:34:55 \tab at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
\cf2 9:34:55 \tab at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:773) [paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:55 \tab at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378) [paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:55 \tab at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:713) [paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:55 \tab at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:616) [paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:55 \tab at java.lang.Thread.run(Unknown Source) [?:1.8.0_66]\par
9:34:55 Caused by: java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/v1_8_R1/inventory/CraftItemStack\par
9:34:55 \tab at com.dogonfire.gods.HolyArtifactManager.handleDeath(HolyArtifactManager.java:369) ~[?:?]\par
9:34:55 \tab at com.dogonfire.gods.BlockListener.OnEntityDeath(BlockListener.java:674) ~[?:?]\par
\cf1 9:34:55 \tab at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_66]\par
9:34:55 \tab at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_66]\par
9:34:55 \tab at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_66]\par
\cf2 9:34:55 \tab at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_66]\par
9:34:55 \tab at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:300) ~[paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
\cf1 9:34:55 \tab ... 21 more\par
\cf2 9:34:55 Caused by: java.lang.ClassNotFoundException: org.bukkit.craftbukkit.v1_8_R1.inventory.CraftItemStack\par
9:34:55 \tab at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:92) ~[paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:55 \tab at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:87) ~[paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
9:34:55 \tab at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_66]\par
9:34:55 \tab at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_66]\par
9:34:55 \tab at com.dogonfire.gods.HolyArtifactManager.handleDeath(HolyArtifactManager.java:369) ~[?:?]\par
9:34:55 \tab at com.dogonfire.gods.BlockListener.OnEntityDeath(BlockListener.java:674) ~[?:?]\par
\cf1 9:34:55 \tab at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_66]\par
9:34:55 \tab at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_66]\par
9:34:55 \tab at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_66]\par
\cf2 9:34:55 \tab at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_66]\par
9:34:55 \tab at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:300) ~[paperspigot-1.8.8.jar:git-PaperSpigot-a26fef5-07c3001]\par
\cf1 9:34:55 \tab ... 21 more}