21:08:42 [SEVERE] Could not pass event PlayerJoinEvent to LiveChat v2.0.2
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:341)
        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 net.minecraft.server.ServerConfigurationManagerAbstract.c(ServerConfi
gurationManagerAbstract.java:162)
        at net.minecraft.server.ServerConfigurationManagerAbstract.a(ServerConfi
gurationManagerAbstract.java:93)
        at net.minecraft.server.NetLoginHandler.d(NetLoginHandler.java:132)
        at net.minecraft.server.NetLoginHandler.c(NetLoginHandler.java:45)
        at net.minecraft.server.DedicatedServerConnectionThread.a(DedicatedServe
rConnectionThread.java:44)
        at net.minecraft.server.DedicatedServerConnection.b(SourceFile:29)
        at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:579)
        at net.minecraft.server.DedicatedServer.r(DedicatedServer.java:215)
        at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:496)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:428)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:818)
Caused by: java.lang.NullPointerException
        at com.gmail.zant95.LiveChat.PlayerDisplayName.main(PlayerDisplayName.ja
va:7)
        at com.gmail.zant95.LiveChat.Listeners.JoinListener.onPlayerJoin(JoinLis
tener.java:20)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.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:339)
        ... 14 more