If the error only happens with a particular show or movie, please contact us and let us know. Make sure you have the latest version of the HBO Max app. To do this open the app store on your device, search for HBO Max, and see if there's an update available. If there's an app update, download it and try streaming again.
First, make sure your HBO Max app and Android TV are up-to-date. HBO Max app: On your Android TV, highlight the HBO Max tile, and then press and hold the select button. Then, choose View Details > Update. Android TV: On your Android TV, go to Settings > System > About > System update > Check for update.