1. Check whether the "application quick freezing" function is turned on in the mobile phone and go to "Settings >"; Battery > apply quick freezing, turn off this function and try to run the software.
2. Determine whether the mobile phone network is normal. If the network is not good, it is recommended to restart the phone and run the software on a better network.
3. If the storage location of the software is moved to the SD card or from the SD card to the memory of the mobile phone, which makes it impossible to open and run, it is recommended to uninstall the software and reinstall it.
4. Determine whether the mobile phone system is the latest version. It is recommended to upgrade the mobile phone system version to the latest version before opening the software for trial use.
If the above methods can't solve your problem, I suggest you back up your mobile phone data, bring your mobile phone and related purchase vouchers, and send them to the nearest official OPPO service center for testing and solving.