no video on my smart TV

I bought FB plus last night. For several months, I have been loading my calendar on Sundays for the week and then use my smart TV to navigate to the website and pull up my workouts that way. Today, it pulled up the website and it's working, and the video page is there, but there is NO video! All the other stuff is normally there, but that square is just white where the video should be. It was like that for any day I pulled up. I wound up having to back to YouTube and finding the video that way and working out. I'm not sure if it's a FB plus issue or something else.