[12:02:28 INFO]: A loud voice asks: What do you call a tribe of people that move
 around with no settled, permanent home?
[12:02:44 ERROR]: Could not pass event PlayerChatEvent to Quiz v1.0
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:294) ~[custom.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav
a:62) ~[custom.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.j
ava:501) [custom.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j
ava:486) [custom.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at net.minecraft.server.v1_7_R3.PlayerConnection$3.evaluate(PlayerConnec
tion.java:890) [custom.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at org.bukkit.craftbukkit.v1_7_R3.util.Waitable.run(Waitable.java:24) [c
ustom.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:6
04) [custom.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:2
60) [custom.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:5
58) [custom.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java
:469) [custom.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:6
28) [custom.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
Caused by: java.lang.NullPointerException
        at org.bukkit.inventory.ItemStack.<init>(ItemStack.java:68) ~[custom.jar
:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        at org.zodiactheories.quiz.Quiz.onPlayerChat(Quiz.java:243) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0
_51]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0
_51]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1
.7.0_51]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_51]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:292) ~[custom.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]
        ... 10 more