Minecraft Forums

I when i open a world,it crashes! please help!
I keep getting this error of unholy:
---- Minecraft Crash Report ----
// Don't do that.

Time: 11/8/13 7:41 PM
Description: Ticking screen

java.lang.NullPointerException
at net.minecraft.client.multiplayer.NetClientHandler.func_72519_a(NetClientHandler.java:952)
at net.minecraft.network.packet.Packet24MobSpawn.func_73279_a(SourceFile:87)
at net.minecraft.network.MemoryConnection.func_74428_b(MemoryConnection.java:89)
at net.minecraft.client.multiplayer.NetClientHandler.func_72551_d(NetClientHandler.java:281)
at net.minecraft.client.gui.GuiDownloadTerrain.func_73876_c(SourceFile:31)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1578)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:908)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:836)
at net.minecraft.client.main.Main.main(SourceFile:101)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:57)
at net.minecraft.launchwrapper.Launch.main(Launch.java:18)

Quote from cosmicthing2

What mods are you using?

Better Dungeons
Derpy Squids
Monster Hunter
Legendary Beasts
Mutant Creatures
Orespawn
Twillight Forest
AnimationApi
Damage Indicators
Golemworld
Spiffy Skins
TragicMC
Optifine