If I were you I would create a new user on the computer (System Preferences:Users) and see if VW will launch from there. If it does that means you  have a problem in your user folder.   If you want to run VW from your original user account, I would next remove your Vectorworks Preferences folder and let VW rebuilt it. It is stored in your user library file. From the Finder, hold down the Option key and choose the GO menu and then Library. If you don't see ti toggle the Option key and i