Error: Navisworks 2013 has stopped working

I have recently set up a Primavera DSN data source to add directly to Navisworks timeliner.
But when I try to add the DNS I get the following error as soon as I press ok.
Why Navisworks 2013 is crashing every time.
Please help me to fix this.

Navisworks has stopped working
A problem caused the program to stop working correctly.
Windows will close the program and notify you if a solution is available.
