Hi all, I came on here looking for a fix a week ago for the same issue on my android phone but had no luck. After a few days I tried whatever I could to get it working again and I finally found a way that worked for me. Not sure if it will help you guys but its worth a try. Go to phone settings > apps > Now tv > storage > clear cache, clear data then force stop. This worked for me so I hope it works for you.