When I was loading my AOTBT and I added a resource pack it was completely fine and normal, till I opened up my world with all my work on it and it just crashed. I had some previous worlds that I made before my good one and I loaded those up and they didn't crash. So I just said "fine ill make another one", so I've played on this new world for about 3 days with a lot of progress and I added mods (correctly) and now I load up my world and it CRASHES, as I did before I loaded up some previous worlds and they didn't crash. EXPLAIN WHY?!?!?!