Could not pass event PlayerDeathEvent to TntBlock v1.0
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:305) ~[spigot.jar:git-Spigot-8dc4297-a7287cb]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-8dc4297-a7287cb]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at org.bukkit.craftbukkit.v1_8_R1.event.CraftEventFactory.callPlayerDeathEvent(CraftEventFactory.java:381) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at net.minecraft.server.v1_8_R1.EntityPlayer.die(EntityPlayer.java:407) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at net.minecraft.server.v1_8_R1.EntityLiving.damageEntity(EntityLiving.java:765) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at net.minecraft.server.v1_8_R1.EntityHuman.damageEntity(EntityHuman.java:799) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at net.minecraft.server.v1_8_R1.EntityPlayer.damageEntity(EntityPlayer.java:486) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at org.bukkit.craftbukkit.v1_8_R1.entity.CraftLivingEntity.damage(CraftLivingEntity.java:200) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at org.bukkit.craftbukkit.v1_8_R1.entity.CraftLivingEntity.damage(CraftLivingEntity.java:188) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at com.earth2me.essentials.commands.Commandkill.updatePlayer(Commandkill.java:43) [Essentials-2.x-SNAPSHOT.jar:?]
        at com.earth2me.essentials.commands.EssentialsLoopCommand.loopOnlinePlayers(EssentialsLoopCommand.java:132) [Essentials-2.x-SNAPSHOT.jar:?]
        at com.earth2me.essentials.commands.Commandkill.run(Commandkill.java:26) [Essentials-2.x-SNAPSHOT.jar:?]
        at com.earth2me.essentials.commands.EssentialsCommand.run(EssentialsCommand.java:186) [Essentials-2.x-SNAPSHOT.jar:?]
        at com.earth2me.essentials.commands.EssentialsCommand.run(EssentialsCommand.java:180) [Essentials-2.x-SNAPSHOT.jar:?]
        at com.earth2me.essentials.Essentials.onCommandEssentials(Essentials.java:527) [Essentials-2.x-SNAPSHOT.jar:?]
        at com.earth2me.essentials.Essentials.onCommand(Essentials.java:402) [Essentials-2.x-SNAPSHOT.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:181) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at org.bukkit.craftbukkit.v1_8_R1.CraftServer.dispatchCommand(CraftServer.java:642) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at net.minecraft.server.v1_8_R1.PlayerConnection.handleCommand(PlayerConnection.java:1083) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at net.minecraft.server.v1_8_R1.PlayerConnection.a(PlayerConnection.java:918) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:26) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:53) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at net.minecraft.server.v1_8_R1.PacketHandleTask.run(SourceFile:13) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_40]
        at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_40]
        at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:683) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:623) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:526) [spigot.jar:git-Spigot-8dc4297-a7287cb]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_40]
Caused by: java.lang.NullPointerException
        at me.jboy.TntBlock.onKill(TntBlock.java:141) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_40]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_40]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_40]
        at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_40]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301) ~[spigot.jar:git-Spigot-8dc4297-a7287cb]
        ... 32 more