Glitches me out and then I need to sign in

Whenever I open the app I need to log in. Whenever I look at my stats I need to log in. Whenever I look at my friends profile I need to log in. It’s super frustrating. I’m not afraid to leave a bad review on the App Store. This has been happening for the past two weeks and I’ve already reported this but but nothing panned. About to cancel my subscription over this. Thanks.