Hi! I understand you're seeing a white screen and continuous spooling after entering data in the Smoke Free app on your Windows device using a WebKit browser. Let's get to the bottom of this together.

To start, could you tell me:

- Are you using the Smoke Free app directly or accessing it via a web browser on your Windows 10 machine?
- Have you tried refreshing the page or closing and reopening the app/browser?
- Is your internet connection stable and strong when this happens?
- Did the issue start recently, maybe after an update or installation of new software?

Meanwhile, here are some initial steps we can try:

1. Check Internet Connection: Ensure you have a good, stable internet connection as the app requires it to process data properly.

2. Clear Browser Cache (If using browser): Sometimes stored data can cause glitches.
- In your WebKit browser, go to settings and clear browsing data/cache.

3. Force Close and Restart: Close the app/browser completely and relaunch it.

4. Try a Different Browser: If possible, try opening the Smoke Free app in a different browser to see if the issue persists.

5. Reset App Data: If none of the above work and if you’re comfortable, you can use the 'Reset Data' feature in the app, which clears all stored app data and may resolve stuck states. Be aware this will erase all your app data and unlink your email with it.

If these steps don't clear up the problem, please let me know what you've tried and any other details you notice (like error messages or exact timing of the problem), and we'll explore deeper troubleshooting.

Are you comfortable trying these, or would you like me to guide you through any specific step?