I have a brand new Android TV (TCL P715) and a VPN subscription. I downloaded the app using the Google Play Store and when I try to connect to a server, it asks for my permission with a pop up dialog box but I can't press "OK". I can't press "Cancel" either. Everything else is working without a problem. I tried a different VPN app and still got the same thing. What could be causing this? Reinstalling didn't work.