Facebook apps do not appear on webpage

Hello,

For the last 2-3 months, I have not been able to play any of my 15 apps (or games as I call them) on Facebook. When I click on a game, I get a blank page and when I put an "s" in the address bar, the page goes back to it's original form from http:// to https://. One of those games does work but not to extent that I wanted it to. Any help would be greatly appreciated.