App does not OPEN properly in latest MacO/S, 10.10.1

I downloaded AB2CSV from the Apple iTunes Store.
I used OPEN to launch AB2CSV
The app asks where you want to store the resulting file, CHOOSE DESTINATION FOLDER, so I selected my DESKTOP.
Then the app asks to access my Contacts, to which I said NO, because I was going to use the VCF file that I have already created by EXPORTing my Contacts from Apple’s Mail to a VCF file on my DESKTOP.
The app starts over, but now it never gets to the screen asking to access my Contacts, but instead shows this error message: “Nothing to Export"
So, I deleted AB2CSV and re-downloaded it from the Apple iTunes Store.
Same problem, it never gets to the screen asking to access my Contacts, but instead shows this error message: “Nothing to Export”

Some bug having to do with the newest O/S is my guess.

Brad Bishop about AB2CSV