Something about fastcraft isn't allowing crusadercraft to start up. Upon actually deleting the mod out of modpack's folder for it's mods I found that not only did the mod pack start but if I readded fastcraft it would crash again. I tested this like more than once just to make sure it was fastcraft. I took mod out no problem starting up . Put the fastcraft back the mod pack crashes that may not be a coincidence it's possible it could be. Basically when you take out fastcraft from the crusadercraft mods folder it pretty much doesn't crash. With it the pack crashes completely. I have 750 invidia card with geforce and plenty of ram and memory. I included crash report just in case because hey it may be fastcraft but since the modpack works fine without fastcraft and loads just fine I have to assume it might be that mod.