My MacBook air with2011 office home & buisiness suddely got stuck while writing a mail after after a "alt+cmd+ off switch" restart all office programs runs as usual but the outlook program wont start. While clicking the Icon the program starts and then shuts down. UNfortunatly I havent connected this to the TIME MACHINE so

I am basically stuck here. - So please let me know what can be done to start the outlook program running again