A. 1. Update the app: Ensure you have the latest version of KCL. Go to the Google Play Store, search for KCL, and tap 'Update' if available. 2. Free up device storage: Low storage can cause apps to crash. Go to 'Settings' > 'Storage' and delete unnecessary files or apps to free up space. 3. Check for system updates: Go to 'Settings' > 'System' > 'System Update' and install any available updates for your device.