To publish the app, you need to register a device within your Apple Developer Account. This will take just 1 minute.
Steps:
1. Go to this link and click the Register a Device button: https://developer.apple.com/account/resources/devices/list
2. Follow steps in guide.
3. Notify Renova team via [email protected] that it's done
Here are the instructions on how to find your UDID (you can use any iPhone for this; it doesn’t matter which one):