[SEVERE] Could not pass event PlayerJoinEvent to V10WorldMap
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:303)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav
a:62)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j
ava:464)
        at net.minecraft.server.ServerConfigurationManager.c(ServerConfiguration
Manager.java:132)
        at forge.PacketHandlerServer.finishLogin(PacketHandlerServer.java:153)
        at forge.PacketHandlerServer.onModListResponse(PacketHandlerServer.java:
98)
        at forge.PacketHandlerServer.onPacketData(PacketHandlerServer.java:37)
        at forge.MessageManager.dispatchIncomingMessage(MessageManager.java:419)

        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:1469)
        at net.minecraft.server.Packet250CustomPayload.handle(SourceFile:46)
        at net.minecraft.server.NetworkManager.b(NetworkManager.java:234)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:121)
        at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:7
8)
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:556)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:453)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
Caused by: java.lang.NullPointerException
        at de.V10lator.V10WorldMap.VWMListener.onPlayerJoin(VWMListener.java:35)

        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:301)