And you would get assistance a lot quicker if you provided as much information on the crashes you are experiencing as you can, as nobody could possibly help you from your original post.
Please give some information on your system, including software versions, details on your audio interface (or lack of one), whether or not this happens on the same project or multiple projects, the nature of any 3rd-party plugins that are present when you crash, and what sorts of things you are doing when you crash.
(And, or course, anything else you think might help us to know, so that we can better assist you).
Since there are not a bunch of threads with common crashes, this is likely something we can help you get past.
I look forward to a bunch of details from you, so we can get you squared away. :)
Bob Bone