Bukkit

What is the issue?
I get an error which I believe happens when People refresh there server list
Please provide any additional information below.

[12:42:03] [Netty IO #2/ERROR]: Could not pass event ServerListPingEvent to PersonalMOTD v2.4
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:294) ~[spigot.jar:git-Spigot-1383]
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-1383]
    at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:47) ~[spigot.jar:git-Spigot-1383]
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-1383]
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-1383]
    at net.minecraft.server.v1_7_R2.PacketStatusListener.a(PacketStatusListener.java:104) [spigot.jar:git-Spigot-1383]
    at net.minecraft.server.v1_7_R2.PacketStatusInStart.a(SourceFile:25) [spigot.jar:git-Spigot-1383]
    at net.minecraft.server.v1_7_R2.PacketStatusInStart.handle(SourceFile:8) [spigot.jar:git-Spigot-1383]
    at net.minecraft.server.v1_7_R2.NetworkManager.a(NetworkManager.java:75) [spigot.jar:git-Spigot-1383]
    at net.minecraft.server.v1_7_R2.NetworkManager.channelRead0(NetworkManager.java:194) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:98) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:173) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:173) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:173) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.handler.timeout.ReadTimeoutHandler.channelRead(ReadTimeoutHandler.java:149) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:785) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:100) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:480) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:447) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:341) [spigot.jar:git-Spigot-1383]
    at net.minecraft.util.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101) [spigot.jar:git-Spigot-1383]
    at java.lang.Thread.run(Unknown Source) [?:1.7.0_45]
Caused by: java.lang.NullPointerException
    at com.addemod.itsatacoshop.motd.PersonalMOTDListener.onServerPing(PersonalMOTDListener.java:77) ~[?:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_45]
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_45]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_45]
    at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_45]
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:292) ~[spigot.jar:git-Spigot-1383]
    ... 31 more
[12:42:22] [User Authenticator #6/INFO]: UUID of player blakecrone is d591fdfc48ac4c72866aa7307f465d19

also Running spigot 1383