Hello! I understand that your PickMe Sri Lanka app is not opening on your Android 10 device using WebKit. Let’s work together to get this sorted out.

First, just to clarify:
- When you tap the PickMe app icon, does it not respond at all, or does it show an error message?
- Have you recently updated the app or the device's OS?
- Is this happening only with the PickMe app or with other apps too?

Assuming you’ve just encountered the app not opening, here’s a straightforward step-by-step guide to try:

1. Clear the App Cache:
- Go to your device's Settings.
- Tap Apps & notifications (or just Apps).
- Find PickMe Sri Lanka in the list.
- Tap on Storage & cache.
- Tap Clear cache.
- Then try opening the app again.

2. Clear App Data (if cache clearing doesn't work):
- Follow the same path to Storage & cache.
- Tap Clear storage or Clear data (this resets app settings and login info, so you will need to log in again).
- Open the app to see if it starts normally.

3. Restart Your Device:
- Sometimes, a simple restart can resolve app launch problems.

4. Check for App Updates:
- Open Google Play Store.
- Search for PickMe Sri Lanka.
- If an update is available, tap Update.

5. Uninstall and Reinstall the App:
- If none of the above works, uninstall the app fully.
- Reinstall it fresh from Google Play Store.

6. Check Internet Connection:
- Ensure you have a stable internet connection; sometimes the app doesn't open if it cannot connect to the server.

Please try these steps and let me know at which point you face difficulty or if you see any error message.

If you’ve already tried these or the app still does not open after this, I can help guide you through some more advanced troubleshooting or check for any ongoing server issues.

Are you satisfied with this initial approach?