Here is the log:
2011-07-24 09:19:53 [SEVERE] Could not pass event WORLD_LOAD to Lupi
java.lang.NullPointerException
at org.halvors.lupi.wolf.WolfManager.getWolfTables(WolfManager.java:109)
at org.halvors.lupi.wolf.WolfManager.addWolf(WolfManager.java:243)
at org.halvors.lupi.wolf.WolfManager.addWolf(WolfManager.java:292)
at org.halvors.lupi.listener.LupiWorldListener.onWorldLoad(LupiWorldListener.java:85)
at org.bukkit.plugin.java.JavaPluginLoader$53.execute(JavaPluginLoader.java:612)
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:332)
at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:267)
at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:148)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:335)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)