NullPointer in AbstractChunkGenerator

[ZachBora]

Encountered an unexpected exception
net.minecraft.server.v1_7_R1.ReportedException: Exception initializing level
at net.minecraft.server.v1_7_R1.World.(World.java:217) ~[spigot.jar:git-Spigot-1261]
at net.minecraft.server.v1_7_R1.WorldServer.(WorldServer.java:51) ~[spigot.jar:git-Spigot-1261]
at net.minecraft.server.v1_7_R1.MinecraftServer.a(MinecraftServer.java:220) ~[spigot.jar:git-Spigot-1261]
at net.minecraft.server.v1_7_R1.DedicatedServer.init(DedicatedServer.java:186) ~[spigot.jar:git-Spigot-1261]
at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:429) [spigot.jar:git-Spigot-1261]
at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [spigot.jar:git-Spigot-1261]
Caused by: java.lang.NullPointerException
at com.worldcretornica.plotme_defaultgenerator.AbstractChunkGenerator.getFixedSpawnLocation(AbstractChunkGenerator.java:38) ~[?:?]
at net.minecraft.server.v1_7_R1.WorldServer.b(WorldServer.java:732) ~[spigot.jar:git-Spigot-1261]
at net.minecraft.server.v1_7_R1.WorldServer.a(WorldServer.java:712) ~[spigot.jar:git-Spigot-1261]
at net.minecraft.server.v1_7_R1.World.(World.java:207) ~[spigot.jar:git-Spigot-1261]
... 5 more
[19:04:17 ERROR]: Cause of unexpected exception was
java.lang.NullPointerException
at com.worldcretornica.plotme_defaultgenerator.AbstractChunkGenerator.getFixedSpawnLocation(AbstractChunkGenerator.java:38) ~[?:?]
at net.minecraft.server.v1_7_R1.WorldServer.b(WorldServer.java:732) ~[spigot.jar:git-Spigot-1261]
at net.minecraft.server.v1_7_R1.WorldServer.a(WorldServer.java:712) ~[spigot.jar:git-Spigot-1261]
at net.minecraft.server.v1_7_R1.World.(World.java:207) ~[spigot.jar:git-Spigot-1261]
at net.minecraft.server.v1_7_R1.WorldServer.(WorldServer.java:51) ~[spigot.jar:git-Spigot-1261]
at net.minecraft.server.v1_7_R1.MinecraftServer.a(MinecraftServer.java:220) ~[spigot.jar:git-Spigot-1261]
at net.minecraft.server.v1_7_R1.DedicatedServer.init(DedicatedServer.java:186) ~[spigot.jar:git-Spigot-1261]
at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:429) [spigot.jar:git-Spigot-1261]
at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [spigot.jar:git-Spigot-1261]
[19:04:17 ERROR]: This crash report has been saved to: /home/minecraft/plots/./crash-reports/crash-2014-02-01_19.04.17-server.txt

[ZachBora]

I looked up the function in the code... but you know the code more than me. Could you look that up?