What should I do if the encryption of important locations on my iPhone cannot be read?

Materials/Tools: Apple 6s

1. Open the mobile phone page and click the settings button to enter.

2. Enter the settings page and click the Privacy button.

3. Enter the privacy page and click on location services.

4. After entering the location service page, click the system service button.

5. Click the Important Locations button on the system service page and click Open.

6. Then complete the fingerprint authentication and enter.

7. Then turn on the button behind the important location.