9 1 1 star cannot be opened.

Check the network connection, reinstall the program, etc.

1. Check the network connection: Make sure that the device is connected to the Internet and the network connection is normal.

2. Reinstall the program: Try to uninstall and reinstall the program to solve the existing software failure or damage.

3. Update program version: Check whether there is an updated version available, and download and install the latest version to fix errors or problems.