rendering: -40/20
java.lang.NullPointerException
        at net.minecraft.server.World.a(World.java:1408)
        at net.minecraft.server.World.a(World.java:1381)
        at net.minecraft.server.Chunk.a(Chunk.java:336)
        at net.minecraft.server.World.setTypeId(World.java:329)
        at net.minecraft.server.WorldGenMinable.a(SourceFile:57)
        at net.minecraft.server.ChunkProviderGenerate.a(ChunkProviderGenerate.java:403)
        at net.minecraft.server.ChunkProviderServer.a(ChunkProviderServer.java:160)
        at net.minecraft.server.ChunkProviderServer.d(ChunkProviderServer.java:101)
        at org.bukkit.craftbukkit.CraftWorld.loadChunk(CraftWorld.java:156)
        at com.bukkit.noobs.Chunkgen.Renderer.run(Renderer.java:94)
        at org.bukkit.craftbukkit.scheduler.CraftWorker.run(CraftWorker.java:33)
        at java.lang.Thread.run(Thread.java:636)
java.lang.NullPointerException
        at net.minecraft.server.World.d(World.java:1369)
        at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:309)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:232)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:512)
2011-02-13 00:45:29 [SEVERE] Unexpected exception
java.lang.NullPointerException
        at net.minecraft.server.World.d(World.java:1369)
        at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:309)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:232)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:512)