A. 1. Clear the app cache: Go to your device's Settings > Apps > Happy Color > Storage > Clear Cache. This can help resolve temporary glitches that cause freezing. 2. Update the app: Ensure you have the latest version of Happy Color. Go to the Google Play Store, search for Happy Color, and tap 'Update' if available. 3. Restart your device: Sometimes, a simple restart can resolve performance issues. Hold down the power button and select 'Restart'.

B. 4. Uninstall and reinstall the app: If the problem persists, uninstall Happy Color from your device and then reinstall it from the Google Play Store. This can help reset any corrupted files.