Minecraft Forums

Hey guys so I'm trying to pre-load a multiplayer world for a rather large community and I am using the plugin PreGenerator but I keep getting this crash report when I run it

---- Minecraft Crash Report ----
// My bad.

Time: 7/31/16 2:59 PM
Description: Exception ticking world

java.util.NoSuchElementException
at java.util.TreeMap.key(Unknown Source)
at java.util.TreeMap.firstKey(Unknown Source)
at java.util.TreeSet.first(Unknown Source)
at net.minecraft.world.WorldServer.func_72955_a(WorldServer.java:743)
at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:283)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:963)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:432)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:841)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:693)
at java.lang.Thread.run(Unknown Source)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
at java.util.TreeMap.key(Unknown Source)
at java.util.TreeMap.firstKey(Unknown Source)
at java.util.TreeSet.first(Unknown Source)
at net.minecraft.world.WorldServer.func_72955_a(WorldServer.java:743)
at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:283)

This is modded, any help I can get with this?