So let me tell you how it went.
I had optifine installed. Found out that was the problem, and deleted it. Now the world worked fine for about an hour. Then, with the extra utilities mod, I made a item transfer node. As SOON as I placed it down on a block of cobble (to get infinite cobble) it IMMEDIATELY said: Shutting down internal server.
Then it crashed.
NOTE: I already went through and made sure versions are fine before all this happened. Something happened AS SOON as I place down that item transfer node.
My mods are:
Forge 10.13.3.1403
CodeChickenLib
ForgeMultiPart
MrTJPCore
Applied Energistics 2
Biblio Craft
Biomes O PLenty
Buildcraft
Carpenter's Blocks
Chicken Chunks
Chisel
Code Chicken Core
CoFHCore
ComputerCraft
Denseores
EnderStorage
Equivalent Exchange 3
Extra Utilities
iChunUtil
IndustrialCraft 2
Inventory Tweaks
Ironchest
mantle
MapWriter
MinefactoryReloaded
MorphingMod
Not Enough Items
ObsidiPlate
OpenBlocks
OpenEye
OpenMods
ProjectRed
Railcraft
TinkersConstruct
ThermalDynamics
ThermalExpansion
Veinminer
WhatAmILookingAt (WALIA)
Here is the crash report for when it says "Shutting down internal server": http://pastebin.com/2gTDCXii
--------------------------------------------------------------------------------------------------------------------
What should I do??