In another thread citing this crash address, the user reported that uninstalling/reinstalling resolved it.
Please let us know if that works for you. If not, I'll ask a developer to check the error code next week.
Btw, some veterans around here counsel not to switch versions mid-project due to unpredictable results. It's not clear from your post whether that's what you're actually intending to do, but if so you might want to think about finishing this one in CS6 and then starting the next project in CC2014. Unless, of course, the old project would benefit markedly from a feature in the new release.