Crash report

[20:39:53 ERROR]: Could not pass event PlayerJoinEvent to SMP v1.0
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:294) ~[craftbukkit-1.7.9-R0.2-20140520.082451-2.jar:git-Bukkit-1.7.
9-R0.1-2-g1e4dcde-b3086jnks]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit-1.7.9-R0.2-20140520.082451-2.jar:git-Bukkit-1.7.9-
R0.1-2-g1e4dcde-b3086jnks]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:501) [craftbukkit-1.7.9-R0.2-20140520.082451-2.jar:git-Bukkit-1.7.
9-R0.1-2-g1e4dcde-b3086jnks]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:486) [craftbukkit-1.7.9-R0.2-20140520.082451-2.jar:git-Bukkit-1.7.
9-R0.1-2-g1e4dcde-b3086jnks]
        at net.minecraft.server.v1_7_R3.PlayerList.c(PlayerList.java:251) [craftbukkit-1.7.9-R0.2-20140520.082451-2.jar:git-Bukkit-1.7.9-R0.1-2-g1e4dc
de-b3086jnks]
        at net.minecraft.server.v1_7_R3.PlayerList.a(PlayerList.java:138) [craftbukkit-1.7.9-R0.2-20140520.082451-2.jar:git-Bukkit-1.7.9-R0.1-2-g1e4dc
de-b3086jnks]
        at net.minecraft.server.v1_7_R3.LoginListener.c(LoginListener.java:76) [craftbukkit-1.7.9-R0.2-20140520.082451-2.jar:git-Bukkit-1.7.9-R0.1-2-g
1e4dcde-b3086jnks]
        at net.minecraft.server.v1_7_R3.LoginListener.a(LoginListener.java:42) [craftbukkit-1.7.9-R0.2-20140520.082451-2.jar:git-Bukkit-1.7.9-R0.1-2-g
1e4dcde-b3086jnks]
        at net.minecraft.server.v1_7_R3.NetworkManager.a(NetworkManager.java:160) [craftbukkit-1.7.9-R0.2-20140520.082451-2.jar:git-Bukkit-1.7.9-R0.1-
2-g1e4dcde-b3086jnks]
        at net.minecraft.server.v1_7_R3.ServerConnection.c(SourceFile:134) [craftbukkit-1.7.9-R0.2-20140520.082451-2.jar:git-Bukkit-1.7.9-R0.1-2-g1e4d
cde-b3086jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.v(MinecraftServer.java:667) [craftbukkit-1.7.9-R0.2-20140520.082451-2.jar:git-Bukkit-1.7.9-R0.
1-2-g1e4dcde-b3086jnks]
        at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:260) [craftbukkit-1.7.9-R0.2-20140520.082451-2.jar:git-Bukkit-1.7.9-R0.
1-2-g1e4dcde-b3086jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:558) [craftbukkit-1.7.9-R0.2-20140520.082451-2.jar:git-Bukkit-1.7.9-R0.
1-2-g1e4dcde-b3086jnks]
        at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:469) [craftbukkit-1.7.9-R0.2-20140520.082451-2.jar:git-Bukkit-1.7.9-R
0.1-2-g1e4dcde-b3086jnks]
        at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [craftbukkit-1.7.9-R0.2-20140520.082451-2.jar:git-Bukkit-1.7.9-R0.
1-2-g1e4dcde-b3086jnks]
Caused by: java.lang.NullPointerException
        at me.zangoran.kobaltorange.smp.SMP.onPlayerJoin(SMP.java:36) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_55]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_55]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_55]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_55]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:292) ~[craftbukkit-1.7.9-R0.2-20140520.082451-2.jar:git-Bukkit-1.7.
9-R0.1-2-g1e4dcde-b3086jnks]
        ... 14 more