Minecraft Forums

To Preface- I am using the Technic Launcher to load the Ultra Modded Survival pack. I would ask for help on the technic fourms, but every time a question is asked about a modpack outside of the ones made by tech launcher staff, they say to ask the modpack creator. Of course, the modpack creator is Captainsparkles, who hasn't been returning my calls.

On to Specifics- I've been playing the world for some time, fighting OP monsters and what have you, with no issues. While searching for a village today, I saw the Ice Hills Biome/ Ice Tree biome (From Biomes o 'plenty.)
I steered clear, because I had no use to be there, and I'd already had a bit of trouble with the biome before. However, while returning home, I passed by the biome, and crashed. Since then, every time I've tried to re-enter my world, (5+ times) it reads "generating world" finishes doing so, flickers back to the menu screen briefly, displays a black screen, and then promptly sends me back to the technic launcher.
While I'm fairly sure It's something to do with this particular biome, I can't be sure. Even if I could be sure, I don't know how to fix its issues.

Link to Pastebin
http://pastebin.com/wByEMxxz

I would greatly appreciate some input.

Well, I have a fairly good computer. I would think it was that, but the problem didn't happen until I bordered the Ice forest.

Ok, this happens alot, especially with me. Just delete optifine. Forestry and tconstruct say that this is true near the bottom

Well, that worked to a degree. I loaded up the world, and it showed me falling through space, and then I was sent to the launcher again.
I checked again to make sure, and it went back to being only black. I appreciate you trying to help. I may just not be able to salvage it.

if you were to just change your coordinates using nbtexplorer with your level.dat it should allow you to spawn in, and then just avoid the biome again