Apple TV app stopped working on my iPad (but works on iphone) . It is stuck on library page.

Try connecting to Wi-Fi before opening the TV app.

If this iPad has cellular functionality, then the TV app would need extra permission to use cellular data.

• Settings﹥Cellular﹥[scroll down to apps list] TV app﹥

Do I delete the app on my iPad then get it again?

Not sure if that will solve the issue, but yes you can do that.

Else contact an expert from the Apple Support staff for further assistance. Contact Apple for support and service (phone numbers) or start your support request online (chat/​email/​callback).