1. There may be something wrong with the software itself. Users can open the system settings of the mobile phone, and then click General, Date and Time to turn off the automatic setting option. Finally, click the time in the blue font on the page and adjust the time to one year before downloading the application.

2. Secondly, it may be that the user does not have an AppleID, and the software of the Apple mobile phone needs to be downloaded in the AppStore, while the AppStore needs the user to have an AppleID and enter the correct password to install the application.