The most common causes of this error is that your GP's Clinical System shows your record as an 'Inactive patient' rather than an 'Active patient'.
Please check with your GP in the first instance, they will be able to check if your record, and make the appropriate change.
If your GP's Clinical System record shows you as an 'Active patient' and you still have a problem with the NHS002 error, then please follow these instructions:
1. Uninstall the App
2. Clear the temporary internet files (cache) on your device: How to clear my cache
3. Restart your device
4. Reinstall the App: Getting started
5. Open the App
6. Login to the App and re-test (please note the date and time if the error occurs)