You can delete it and repeat it. Pay attention to download the corresponding ios software from Apple's App store.

The main reasons for software incompatibility are as follows:

1, App does not match or is incompatible with the version of the current system;

2. The App has a new version, but you didn't update it in time;

3. Your App is not downloaded and updated in the App Store, but some third-party housekeeper assistants;