Food Network Go app no longer working on Apple TV

Hello,

Today (May 10, 2020) the Food Netwpork Go app stopped working on my Apple TV. After I activate my Xfinity subscription within the app, any show I select will not play. I receive this message, "This content is available to viewers who receive Food Networka as part of their pay TV subscription." 

I am able to view the app with my mobile devices.