Ok, I just upgraded to the newest release, and, when opening my mail, the whole game just crashed. So, I disabled all addons, no issues, enabled them again, crashed.
So, since carbonite was the only addon I upgraded, I went back to the 3.31 version, and no crashes. There is something seriously wrong with this version. Thought you might want to know.
Well, actually, there was something seriously wrong with your particular installation of 3.3.2. If it was a problem with the addon itself, there'd be a lot more people (including me!) reporting it - and I for one am not, because 3.3.2 works fine for me.
You might try reinstalling 3.3.2, and testing whether it works as the only addon active. If so, it's an interaction problem with some other addon(s). If not, it may be a corrupt saved variables file. Try removing the carbonite related files from the appropriate Saved Variables folder (in your wtf folder someplace) and see if that helps.