Thanks for the note here. Have you tried removing the app, restarting your phone, then adding the app back once more?
Please keep us posted. If that doesn't resolve the issue, please provide more specifics including the exact model of iPhone/iPad you are using, the version of iOS that is installed, and the version of the Roku mobile app you have installed.
Yes I have done that I tried 5 times and I even thought it was my phone so I restored my phone and it still doesn’t work I have an iPhone 8 Plus with iOS 13 and the roku app was up to date since my apps update automatically