Agot crashes when saving manually.

As it says in the title. I haveproblems saving manually. I play with agot and the agot RtP mod along with potraits replacer. Sometimes it works others it just crashes. Ive tried earlier to play with submods but they wont work. I just don't get it. I downloaded the mods from here  yet have lots of problems. What do I need to do to be able to play a game of Agot with RtP and submods without crashes every 5 minutes and when im trying to save?