Unable to download Flash Player to Facebook app

I have Windows 10.  Whenever I use a web browser to pull up Facebook, I have no problem playing The Price is Right Slots game.  But whenever I use the Facebook app found in the Windows 10 menu, I'll try to pull up The Price is Right Slots game, but get a message saying "Abode Flash Player 11.7 or higher is required to play The Price is Right Slots," and will have a link to download the latest version of Flash Player.  I'm never able to download Flash Player using the link no matter what I try.  Part of the problem may be that the download/install page that appears tells me that the system I'm using is Windows (32-bit) and Firefox, which of course is wrong:  I'm using Windows 10 (64-bit) and, instead of using any browser, I'm using the Facebook app.  So when I click on the link located on that same page that says "install now," I end up on a white page that says "Unable to Connect;  something went wrong."  Below that is a link that says "retry" which of course never works.

Any helpful advice would be appreciated.