16:20:38 [SEVERE] Could not pass event EntityDamageByEntityEvent to DiabloDrops
v2.2.366
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:427)
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav
a:62)
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.j
ava:477)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j
ava:462)
at org.bukkit.craftbukkit.v1_4_6.event.CraftEventFactory.callEvent(Craft
EventFactory.java:81)
at org.bukkit.craftbukkit.v1_4_6.event.CraftEventFactory.callEntityDamag
eEvent(CraftEventFactory.java:367)
at org.bukkit.craftbukkit.v1_4_6.event.CraftEventFactory.handleEntityDam
ageEvent(CraftEventFactory.java:389)
at net.minecraft.server.v1_4_6.EntityLiving.damageEntity(EntityLiving.ja
va:674)
at net.minecraft.server.v1_4_6.EntityMonster.damageEntity(EntityMonster.
java:39)
at net.minecraft.server.v1_4_6.EntityHuman.attack(EntityHuman.java:803)
at net.minecraft.server.v1_4_6.PlayerConnection.a(PlayerConnection.java:
1119)
at net.minecraft.server.v1_4_6.Packet7UseEntity.handle(SourceFile:36)
at net.minecraft.server.v1_4_6.NetworkManager.b(NetworkManager.java:290)

    at net.minecraft.server.v1_4_6.PlayerConnection.d(PlayerConnection.java:

112. at net.minecraft.server.v1_4_6.ServerConnection.b(SourceFile:39)
     at net.minecraft.server.v1_4_6.DedicatedServerConnection.b(SourceFile:30
     )
     at net.minecraft.server.v1_4_6.MinecraftServer.r(MinecraftServer.java:59

113.  at net.minecraft.server.v1_4_6.DedicatedServer.r(DedicatedServer.java:22
     

114.  at net.minecraft.server.v1_4_6.MinecraftServer.q(MinecraftServer.java:49
     

115.  at net.minecraft.server.v1_4_6.MinecraftServer.run(MinecraftServer.java:
     

116. at net.minecraft.server.v1_4_6.ThreadServerApplication.run(SourceFile:84

Caused by: java.lang.NullPointerException
at com.modcrafting.diablodrops.effects.EffectsAPI.listEffects(EffectsAPI
.java:424)
at com.modcrafting.diablodrops.effects.EffectsAPI.handlePluginEffects(Ef
fectsAPI.java:352)
at com.modcrafting.diablodrops.listeners.EffectsListener.onDiabloMonster
DamageByEntityEvent(EffectsListener.java:46)
at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:425)
... 20 more