Currently unable to progress my character due to getting the above error after about 4 hours of in game time from the point of the save. This seems very similar to behaiviour described in https://forum.fenoxo.com/threads/adding-bellyrating-to-a-nullpregnancy.30317/ , however I do not remember interacting with sera in the playthrough, and certainly not enough to the level where she can get pregnant. Error dump and save file are attached.