It is difficult to make our what your problem is with your cryptic message.But I see something about 50k and 69k, so I am going to assume you are having a problem with FTM 2012 hanging with a file of about 70k.
A 70k database is a quite small database for an FTM genealogical database I have about 1500 people in mine and it is about 14mb (14000k).
If this is the problem the first thing you should do is backup and compact the database.It is my understanding the the compact function in FTM not compacts the database but fixes any errors that may be found.
It is my understanding the the FTM database in a relational database and if the pointer get out of wack, it will cause errors.
If this does not fix the problem please explain your problem better so we can understand your problem and help you.