For me, the CTD issue was caused by a mod that attempted to allow Vampire Lords to activate/loot things, and use the map. Completely uninstalling that, scripts and all, solved the problem.
Most likely the issue is a mod conflict. Try removing mods one at a time and see if one of those is causing it. Also, go into Steam right-click Skyrim and then go to Local Files, and Verify Integrity of Local Game Cache.