Zoom to Facebook Fails...

I've been streaming my monthly shows from Zoom to Facebook for over a year without a problem. All of a sudden it will not connect to Facebook. It is a Zoom page that says that I must log on to Facebook first, but I am already logged on. When I click the box that says "Connect to Facebook" it resets and returns to the same page. It has been doing this for over a week and my techie friends are baffled.