Unable to sign into Apple TV app

I have a Roku Express on my downstairs Samsung TV and can use Apple TV app just fine. I have a Roku Express on my Insignia Roku TV upstairs and can’t login to the Apple TV app. When using mobile it says verification failure and when signing on thru the TV, the wheel just spins forever. I saw another post about an SD card but mine doesn’t have one that I can tell. I contacted Apple and they told me to contact Roku. On the other post Roku says to contact Apple. I literally just bought this Roku Express so I can watch Apple TV upstairs and it doesn’t work.