A. 1. Clear the app cache: Go to your device settings, find the Hacoo app under 'Apps', and select 'Storage'. Tap on 'Clear Cache'. This can help resolve temporary issues causing crashes. 2. Update the app: Check the app store for any available updates. Developers often release updates to fix bugs and improve stability. 3. Reinstall the app: Uninstall the Hacoo app and then reinstall it from the app store. This can resolve issues caused by corrupted files.

B. 4. Check device compatibility: Ensure your device meets the minimum requirements for running the Hacoo app. If your device is outdated, consider upgrading.