Hi there! I understand you're not receiving error cleaning notifications from the SharkClean app on your iPhone 14 running iOS 18.5. Let's work through this together.

To start, can you tell me if you are receiving other types of notifications from the SharkClean app, or is it only the error cleaning notifications that are missing? Also, have you checked if notifications are enabled for the app in your iPhone settings?

Meanwhile, here’s a step-by-step guide that usually helps resolve notification issues:

1. Check iPhone Notification Settings:
- Go to Settings > Notifications.
- Scroll down and tap SharkClean.
- Ensure Allow Notifications is turned on.
- Make sure Alerts are enabled on Lock Screen, Notification Center, and Banners.
- Also, enable Sounds and Badges if you want.

2. Verify SharkClean App Notification Settings:
- Open the SharkClean app.
- Look for any notification preferences or settings inside the app.
- Ensure error or cleaning alerts are turned on.

3. Restart Your iPhone:
- Sometimes a simple restart helps refresh the system notifications.

4. Update the SharkClean App:
- Open the App Store.
- Search for SharkClean.
- If an update is available, install it.

5. Reinstall the SharkClean App:
- If the problem persists, try uninstalling and reinstalling the app.
- To do this, press and hold the app icon, tap Remove App, then Delete App.
- After uninstalling, reinstall it from the App Store, then log back in.

6. Check Background App Refresh:
- Go to Settings > General > Background App Refresh.
- Ensure it’s enabled and that SharkClean is allowed to refresh in the background.

If you’ve already tried some of these steps, please let me know which ones, and we can look into advanced troubleshooting. Also, confirm if your phone has a stable internet connection when these errors occur since the app needs connectivity to send notifications.

Looking forward to hearing back so we can get those notifications working again!