[00:31:10] [Server thread/ERROR]: Could not pass event PlayerJoinEvent to ZavAutoMessager v2.6
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:320) ~[craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
	at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:47) ~[craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:487) [craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:472) [craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
	at net.minecraft.server.v1_7_R1.PlayerList.c(PlayerList.java:225) [craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
	at net.minecraft.server.v1_7_R1.PlayerList.a(PlayerList.java:116) [craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
	at net.minecraft.server.v1_7_R1.LoginListener.c(LoginListener.java:87) [craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
	at net.minecraft.server.v1_7_R1.LoginListener.a(LoginListener.java:42) [craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
	at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:150) [craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
	at net.minecraft.server.v1_7_R1.ServerConnection.c(ServerConnection.java:77) [craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
	at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:700) [craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
	at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:273) [craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
	at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:562) [craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
	at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:469) [craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
	at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
Caused by: java.lang.NullPointerException
	at com.zavteam.plugins.utils.Updater.getVersionNumber(Updater.java:492) ~[?:?]
	at com.zavteam.plugins.ZavAutoMessager$1.onPlayerJoin(ZavAutoMessager.java:62) ~[?:?]
	at sun.reflect.GeneratedMethodAccessor202.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_07]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_07]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:318) ~[craftbukkit-0.0.1-SNAPSHOT.jar:git-Spigot-1324]
	... 15 more