To give those on the forum a clue as to the reason behind the crashes, what specifically are you doing at the time of the crash? Is there a specific media type that you are using that you are using? If yes, then advising your media properties would be helpful, as per:
Vegas Pro 13 must be nearly 6 years old now - has the crashing problem existed for all that time? If not, what has changed from when VP13 worked as to when it started crashing?