A. 1. Clear the app cache: Go to your device's Settings > Apps > Criptext Secure Email > Storage > Clear Cache. This can help resolve temporary issues that may cause crashes. 2. Update the app: Ensure you have the latest version of the app installed. Go to the Google Play Store, search for Criptext Secure Email, and tap 'Update' if available. 3. Reinstall the app: Uninstall the app from your device and then reinstall it from the Google Play Store. This can fix corrupted files that may be causing crashes.

B. 4. Check for device updates: Go to Settings > System > System Update to ensure your device is running the latest software version, as compatibility issues can lead to crashes.