Crash when starting world

[Fred]

I looked through the forums to find a crash similar to mine, but because I have yet too, I'll post my pastebin here: http://pastebin.com/u5xX8mEZ
Exception in server tick loop

java.lang.NullPointerException
at java.util.ArrayList.<init>(Unknown Source)
at micdoodle8.mods.galacticraft.core.tick.GCCoreTickHandlerServer.tickStart(GCCoreTickHandlerServer.java:50)
at cpw.mods.fml.common.SingleIntervalHandler.tickStart(SingleIntervalHandler.java:28)
at cpw.mods.fml.common.FMLCommonHandler.tickStart(FMLCommonHandler.java:122)
at cpw.mods.fml.common.FMLCommonHandler.onPreWorldTick(FMLCommonHandler.java:295)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:652)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:587)
at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:175)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:484)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)