hotshot2345 im on the same boat as you, Ive been working on 2D camera tracking , once waiting for a few mins, it starts solving, then for 5 times in a row after effects decides to have 'a problem' 'unresponsive' and just closes down.
I see a moderator has branched your question from an earlier thread. Probably because your issue seems quite different from hotshot's. In the original thread it freezes on opening. You get AE open just fine; it's a specific task that causes the freezing for you.
Now, could you please tell us some more information about your system and what you are doing? For example, there is no such thing as 2d camera tracking in AE as you say you're doing. Now, I assume you mean you are using the 3d camera tracker, but you might be doing something different and calling it camera tracking.
If it is the 3d camera tracker that you're using, try turning off your wifi.