Unable to open secure access

Hello, I have the first version of secureaccess on my usb flashdrive, but for 2 days I can’t open the application on my mac, there is a n error message about the windows opening and then my computer notified me that the app has crashed. So I can’t have access to my files, but I stille have the “myvault” file on the usb key , with all my crypted documents. How can I have access now to all my files???