My Vectorworks 2009 application keeps

My Vectorworks 2009 application keeps crashing everytime I try opening. This is the message I receive: "The application Vecotworks 2009 quit unexpectedly. Mac Os X and other applications are not affected. Click relaunch to relaunch the application again. Click report to see more details or send a report to apple " I tried relaunching and reinstalling the application but it never works and gives me the same message everytime. Last time I used 6 months ago, it worked perfectly.