ERROR Could not pass event PlayerDeathEvent to HCF v7.7-SNAPSHOT
26.05 21:14:41 [Server] INFO org.bukkit.event.EventException
26.05 21:14:41 [Server] INFO at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:509) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:494) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at org.bukkit.craftbukkit.v1_7_R4.event.CraftEventFactory.callPlayerDeathEvent(CraftEventFactory.java:397) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at net.minecraft.server.v1_7_R4.EntityPlayer.die(EntityPlayer.java:395) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at net.minecraft.server.v1_7_R4.EntityLiving.damageEntity(EntityLiving.java:806) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at net.minecraft.server.v1_7_R4.EntityHuman.damageEntity(EntityHuman.java:770) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at net.minecraft.server.v1_7_R4.EntityPlayer.damageEntity(EntityPlayer.java:474) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at net.minecraft.server.v1_7_R4.EntityHuman.attack(EntityHuman.java:955) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:1210) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at net.minecraft.server.v1_7_R4.PacketPlayInUseEntity.a(PacketPlayInUseEntity.java:37) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at net.minecraft.server.v1_7_R4.PacketPlayInUseEntity.handle(PacketPlayInUseEntity.java:49) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:189) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at net.minecraft.server.v1_7_R4.ServerConnection.c(ServerConnection.java:81) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:795) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:306) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:643) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:549) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO Caused by: java.lang.IllegalArgumentException: Cannot drop a Null item.
26.05 21:14:41 [Server] INFO at org.apache.commons.lang.Validate.notNull(Validate.java:192) ~[customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at org.bukkit.craftbukkit.v1_7_R4.CraftWorld.dropItem(CraftWorld.java:320) ~[customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at org.bukkit.craftbukkit.v1_7_R4.CraftWorld.dropItemNaturally(CraftWorld.java:338) ~[customspigot.jar:git-PaperSpigot-a541d9f]
26.05 21:14:41 [Server] INFO at a.a.j.d.b.b.m.onPlayerDeath(Unknown Source) ~[?:?]
26.05 21:14:41 [Server] INFO at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_151]
26.05 21:14:41 [Server] INFO at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_151]
26.05 21:14:41 [Server] INFO at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_151]
26.05 21:14:41 [Server] INFO at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_151]
26.05 21:14:41 [Server] INFO at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:298) ~[customspigot.jar:git-PaperSpigot-a541d9f]