Sometimes those random crashes or errors can be a result of your software not being updated. 

Thats why it’s very important to keep your software updated to keep from having downtime and or project file issues, and in this screencast link below you will find a couple of quick ways to find the updates for your software.

Autodesk Product Updates – (Screencast Link) – http://autode.sk/1gOtu0t

http://knowledge.autodesk.com/support

and

https://manage.autodesk.com/cep/#products-services/updates