2014-02-17 02:06:04 [WARNING] [Minecraft-Server] Unable to find spawn biome
2014-02-17 02:06:05 [INFO] [STDERR] net.minecraft.util.ReportedException: Exception getting block type in world
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.World.<init>(World.java:320)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.WorldServer.<init>(WorldServer.java:110)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:74)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:107)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:445)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)
2014-02-17 02:06:05 [INFO] [STDERR] Caused by: java.lang.NullPointerException
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.chunk.Chunk.func_76592_a(Chunk.java:758)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.World.func_72832_d(World.java:559)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.gen.feature.WorldGenMinable.func_76484_a(WorldGenMinable.java:82)
2014-02-17 02:06:05 [INFO] [STDERR]     at Reika.GeoStrata.World.RockGenerator.generateRock(RockGenerator.java:63)
2014-02-17 02:06:05 [INFO] [STDERR]     at Reika.GeoStrata.World.RockGenerator.generate(RockGenerator.java:35)
2014-02-17 02:06:05 [INFO] [STDERR]     at cpw.mods.fml.common.registry.GameRegistry.generateWorld(GameRegistry.java:103)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.gen.ChunkProviderServer.func_73153_a(ChunkProviderServer.java:259)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.chunk.Chunk.func_76624_a(Chunk.java:1248)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:153)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.gen.ChunkProviderServer.func_73154_d(ChunkProviderServer.java:166)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.World.func_72964_e(World.java:529)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.World.func_72798_a(World.java:414)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.World.func_72799_c(World.java:438)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.World.func_72922_b(World.java:385)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.WorldProvider.func_76566_a(WorldProvider.java:102)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.WorldServer.func_73052_b(WorldServer.java:830)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.WorldServer.func_72963_a(WorldServer.java:794)
2014-02-17 02:06:05 [INFO] [STDERR]     at net.minecraft.world.World.<init>(World.java:305)
2014-02-17 02:06:05 [INFO] [STDERR]     ... 5 more
2014-02-17 02:06:05 [SEVERE] [Minecraft-Server] Encountered an unexpected exception ReportedException
net.minecraft.util.ReportedException: Exception getting block type in world
    at net.minecraft.world.World.<init>(World.java:320)
    at net.minecraft.world.WorldServer.<init>(WorldServer.java:110)
    at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:74)
    at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:107)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:445)
    at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)
Caused by: java.lang.NullPointerException
    at net.minecraft.world.chunk.Chunk.func_76592_a(Chunk.java:758)
    at net.minecraft.world.World.func_72832_d(World.java:559)
    at net.minecraft.world.gen.feature.WorldGenMinable.func_76484_a(WorldGenMinable.java:82)
    at Reika.GeoStrata.World.RockGenerator.generateRock(RockGenerator.java:63)
    at Reika.GeoStrata.World.RockGenerator.generate(RockGenerator.java:35)
    at cpw.mods.fml.common.registry.GameRegistry.generateWorld(GameRegistry.java:103)
    at net.minecraft.world.gen.ChunkProviderServer.func_73153_a(ChunkProviderServer.java:259)
    at net.minecraft.world.chunk.Chunk.func_76624_a(Chunk.java:1248)
    at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:153)
    at net.minecraft.world.gen.ChunkProviderServer.func_73154_d(ChunkProviderServer.java:166)
    at net.minecraft.world.World.func_72964_e(World.java:529)
    at net.minecraft.world.World.func_72798_a(World.java:414)
    at net.minecraft.world.World.func_72799_c(World.java:438)
    at net.minecraft.world.World.func_72922_b(World.java:385)
    at net.minecraft.world.WorldProvider.func_76566_a(WorldProvider.java:102)
    at net.minecraft.world.WorldServer.func_73052_b(WorldServer.java:830)
    at net.minecraft.world.WorldServer.func_72963_a(WorldServer.java:794)
    at net.minecraft.world.World.<init>(World.java:305)
    ... 5 more