All of a sudden I cant save. Game crashes. I've played the main quest with hundreds of saves and I just started playing a new character.
I did save the last game save of my first character. Is this causing a problem? I am running OMM. Any tools there that will help? Thanks.

Edit:

I'm doing the Dark brotherhood quest and I'm at the point where I had to enter the prison sewer to kill someone. I'm also in the thieves
guild. Conflict?

Are you patched up to date? I know that seems like an obvious question, but... if you aren't, it could have messed up your game saves.

All patch up. Official and Un-Official. Thanks.

The OBMM report show a lot of Rens hair conflicts. So when I try to do unselected Rens hair in race menu, and try to save it crashes.