The version of 1.app is too low. If the app version is too low, the software will not open. Just upgrade to the latest version.

2. The mobile phone system version is too low, and most apps have minimum system version requirements. If it is lower than this version, it may not be opened.

3. The system is incompatible with the application. If the Android phone has Apple's app installed, it may not work properly.

4. The running memory of the mobile phone is too low, causing the software to flash back. It is recommended to clean up the background and reopen the software.

Users can operate according to the actual situation.