A. If you encounter error messages when opening the app, try restarting your iPhone. This can resolve temporary glitches that may be causing the issue. After restarting, try opening the app again.
B. If the problem persists, uninstall the app by pressing and holding the TVNZ+ app icon until it jiggles, then tap the 'X' to delete it. Reinstall the app from the App Store to ensure you have the latest version.