App Totally stopped working

The App totally stopped working for me. I've already deleted the app, shut my phone off and restarted it, then reinstalled the app. Now when I try to use the app I get a message "406 Not acceptable." When I try to access ring.com on my phone I just get "not acceptable." This is an iPhone 13. The app should work, clean reinstall or not. I cannot even contact ring on my phone. Is there some reason my IP is blocked? I have Verizon for the phone and AT&T for the wifi.I can still get to ring.com on my computer, but my phone is wehere I actually need it.