Bukkit

2015-08-10 01:41:11 [INFO] Lyosha12 issued server command: /kill Esbrime
2015-08-10 01:41:12 [SEVERE] Could not pass event PlayerWasKilledEvent to ReActions v0.9.9
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:30)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:478)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:463)
    at me.fromgate.reactions.event.EventManager.raisePVPDeathEvent(EventManager.java:179)
    at me.fromgate.reactions.RAListener.onPlayerDeath(RAListener.java:168)
    at sun.reflect.GeneratedMethodAccessor687.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.java:425)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:30)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:478)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:463)
    at org.bukkit.craftbukkit.v1_5_R3.event.CraftEventFactory.callPlayerDeathEvent(CraftEventFactory.java:361)
    at net.minecraft.server.v1_5_R3.EntityPlayer.die(EntityPlayer.java:294)
    at net.minecraft.server.v1_5_R3.EntityLiving.damageEntity(EntityLiving.java:764)
    at net.minecraft.server.v1_5_R3.EntityHuman.damageEntity(EntityHuman.java:684)
    at net.minecraft.server.v1_5_R3.EntityPlayer.damageEntity(EntityPlayer.java:359)
    at org.bukkit.craftbukkit.v1_5_R3.entity.CraftLivingEntity.damage(CraftLivingEntity.java:195)
    at org.bukkit.craftbukkit.v1_5_R3.entity.CraftLivingEntity.damage(CraftLivingEntity.java:180)
    at com.earth2me.essentials.commands.Commandkill.run(Commandkill.java:41)
    at com.earth2me.essentials.commands.EssentialsCommand.run(EssentialsCommand.java:111)
    at com.earth2me.essentials.commands.EssentialsCommand.run(EssentialsCommand.java:105)
    at com.earth2me.essentials.Essentials.onCommandEssentials(Essentials.java:431)
    at com.earth2me.essentials.Essentials.onCommand(Essentials.java:320)
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:189)
    at org.bukkit.craftbukkit.v1_5_R3.CraftServer.dispatchCommand(CraftServer.java:546)
    at net.minecraft.server.v1_5_R3.PlayerConnection.handleCommand(PlayerConnection.java:985)
    at net.minecraft.server.v1_5_R3.PlayerConnection.chat(PlayerConnection.java:901)
    at net.minecraft.server.v1_5_R3.PlayerConnection.a(PlayerConnection.java:846)
    at net.minecraft.server.v1_5_R3.Packet3Chat.handle(Packet3Chat.java:44)
    at org.spigotmc.netty.NettyNetworkManager.b(NettyNetworkManager.java:215)
    at net.minecraft.server.v1_5_R3.PlayerConnection.d(PlayerConnection.java:115)
    at net.minecraft.server.v1_5_R3.ServerConnection.b(SourceFile:35)
    at org.spigotmc.MultiplexingServerConnection.b(MultiplexingServerConnection.java:72)
    at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:583)
    at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:227)
    at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:472)
    at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:404)
    at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.NullPointerException
    at me.fromgate.reactions.util.item.VirtualItem.toDisplayString(VirtualItem.java:632)
    at me.fromgate.reactions.util.item.ItemUtil.toDisplayString(ItemUtil.java:376)
    at me.fromgate.reactions.actions.ActionItems.setInventorySlot(ActionItems.java:93)
    at me.fromgate.reactions.actions.ActionItems.execute(ActionItems.java:56)
    at me.fromgate.reactions.actions.Action.executeAction(Action.java:73)
    at me.fromgate.reactions.actions.Actions.performAction(Actions.java:182)
    at me.fromgate.reactions.actions.Actions.executeActions(Actions.java:176)
    at me.fromgate.reactions.actions.Actions.executeActivator(Actions.java:147)
    at me.fromgate.reactions.activators.PlayerDeathActivator.activate(PlayerDeathActivator.java:44)
    at me.fromgate.reactions.activators.Activator.executeActivator(Activator.java:230)
    at me.fromgate.reactions.activators.Activators.activate(Activators.java:288)
    at me.fromgate.reactions.RAListener.onPVPDeathActivator(RAListener.java:426)
    at sun.reflect.GeneratedMethodAccessor688.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.java:425)
    ... 42 more