Hi! I can help you get your Zen Color app working again. To start, could you tell me a bit more? For example, are you seeing an error message, is the app not opening at all, or is there some other problem happening? Also, have you tried any steps already like restarting the app or your device?

In the meantime, here are some straightforward troubleshooting steps to try for Zen Color on your Android 10 device:

1. Clear App Cache and Data
- Go to Settings > Apps > find Zen Color
- Tap Storage
- Tap Clear Cache first, then Clear Data
This resets temporary files that may cause issues without deleting the app itself.

2. Restart Your Phone
Sometimes a simple reboot helps clear any minor glitches.

3. Check for Updates
Since the app has reportedly been removed or disabled from Google Play due to security concerns recently, make sure your app is not disabled by Play Protect or missing updates. You can check this by:
- Opening Google Play Store
- Going to Manage apps & devices > Manage tab
- Look for Zen Color and see if it’s disabled or needs an update.

4. Reinstall the App
If the app was removed or damaged, uninstalling and reinstalling might help. Just be aware that if it’s been removed from Play Store due to security issues, it might not be available there now.

If after these steps your app still doesn’t work, could you let me know exactly what you observe? For example, do you get a black screen, does the app crash, or does it just not open? That will help me guide you further.

Are you satisfied with these initial steps so far?