java.lang.NullPointerException
	at lm.a(Chunk.java:342)
	at fd.c(World.java:424)
	at WorldGenNetherMinable.a(WorldGenNetherMinable.java:59)
	at mod_Nether.GenerateNether(mod_Nether.java:830)
	at ModLoader.PopulateChunk(ModLoader.java:1025)
	at ok.a(ok.java:120)
	at ok.c(ok.java:60)
	at ok.b(ok.java:75)
	at fd.c(World.java:383)
	at fd.a(World.java:319)
	at fd.q(World.java:2353)
	at net.minecraft.client.Minecraft.k(SourceFile:1501)
	at net.minecraft.client.Minecraft.run(SourceFile:754)
	at java.lang.Thread.run(Unknown Source)