Xfinity Stream

While attempting to stream on the app on my Roku TV, the screen is black with 3 loading dots. After a while the screen will say, “Attempting to Resume… We’ve run into a problem while streaming,” and it will keep trying to load. Occasionally, it will show the error code TVAPP-00231. I have logged out, logged back in, deleted the app, restarted the tv, unplugged the tv, nearly everything. I was able to stream prior as well until this started happening. I also downloaded it on a different tv in the house and my phone thinking the other tv wasn’t compatible anymore. The streaming app gives the same loading screen/message. Any info on how to fix this?? Is it a me problem? or xfinity?