Hi! I'm Alice Johnson. I understand you're having trouble logging into the Ten Ten app on your Android 10 device using WebKit browser. Let's work through this together.

First, can you tell me what exactly happens when you try to log in? Do you see an error message, or does the app just not respond? Also, are you using the app or trying to log in through a browser?

Meanwhile, here are a few quick steps to try:
1. Clear app cache and data: Go to Settings > Apps > Ten Ten > Storage, then tap Clear Cache and Clear Data. This removes temporary files that might cause login issues.
2. Check your internet connection: Ensure your device is connected to a stable Wi-Fi or mobile network. Sometimes login fails due to connectivity problems.
3. Update the app: Make sure you have the latest version installed from the Google Play Store. Older versions sometimes have bugs fixed in updates.
4. Restart your device: A simple reboot can fix minor glitches.

If you’ve already tried any of these, please let me know so I can guide you further. If not, start with these, and we’ll go from there!

Are you satisfied with this plan so far?