A. 1. Restart your iPhone to clear any temporary glitches that might be causing the app to close unexpectedly.\n2. Ensure that your iPhone's operating system is up to date by going to Settings > General > Software Update.\n3. Check for any available updates for the USAF Connect app in the App Store.\n4. Clear the app's cache by going to Settings > General > iPhone Storage, find USAF Connect, and select 'Offload App'. This will remove the app but keep its documents and data. Reinstall the app from the App Store.\n5. If the problem persists, try resetting all settings by going to Settings > General > Reset > Reset All Settings. This will not delete your data but will reset system settings.