[18:02:33 ERROR]: Could not pass event EntityDeathEvent to MythicMobs v4.3.2-SNAPSHOT
org.bukkit.event.EventException: null
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:500) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:485) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.callEntityDeathEvent(CraftEventFactory.java:395) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at net.minecraft.server.v1_12_R1.EntityLiving.die(EntityLiving.java:1114) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at net.minecraft.server.v1_12_R1.EntitySkeleton.die(EntitySkeleton.java:46) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at net.minecraft.server.v1_12_R1.EntityLiving.damageEntity(EntityLiving.java:956) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at net.minecraft.server.v1_12_R1.EntityMonster.damageEntity(EntityMonster.java:44) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at net.minecraft.server.v1_12_R1.EntityHuman.attack(EntityHuman.java:1005) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at net.minecraft.server.v1_12_R1.EntityPlayer.attack(EntityPlayer.java:1302) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1621) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at net.minecraft.server.v1_12_R1.PacketPlayInUseEntity.a(SourceFile:69) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at net.minecraft.server.v1_12_R1.PacketPlayInUseEntity.a(SourceFile:13) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at net.minecraft.server.v1_12_R1.PlayerConnectionUtils$1.run(SourceFile:13) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_171]
        at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_171]
        at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:748) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:406) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577) [spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_171]
Caused by: java.lang.NullPointerException
        at io.lumine.xikage.mythicmobs.adapters.bukkit.BukkitSkillTriggers.onDeathTrigger(BukkitSkillTriggers.java:493) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_171]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_171]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_171]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_171]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[spigot1.12.2.jar:git-Spigot-4bd94dc-fb414fe]
        ... 22 more