Hi! I understand you're having trouble with the Booking.com app crashing and not letting you log back in. Let's get this sorted out together.

To start, could you tell me a bit more about how you're accessing Booking.com? Are you using the desktop app, a web browser, or the mobile app on your Windows device? Also, have you noticed if the crash happens right when you try to log in or at another point?

In the meantime, here are some steps that usually help with app crashes and login problems on Windows:

1. Clear Browser Cache and Cookies:
Since you're on Windows with WebKit (likely a browser), clearing your cache and cookies can resolve issues caused by corrupted data.
- Open your browser settings.
- Find the option to clear browsing data.
- Select cookies and cached images/files, then clear them.
- Restart the browser and try logging in again.

2. Check for Browser Updates:
An outdated browser might cause crashes. Make sure your WebKit-based browser is up-to-date.

3. Disable Browser Extensions:
Sometimes, extensions interfere with website functionality. Try disabling them temporarily to see if that fixes the issue.

4. Try a Different Browser:
Attempt logging in via another browser like Chrome, Firefox, or Edge to determine if the problem is browser-specific.

5. Check Your Internet Connection:
A stable network helps the app or site perform correctly. Switching to another Wi-Fi or using ethernet can help.

6. Restart Your Device:
A simple restart can clear any temporary glitches causing the app or browser crashes.

If you’ve already done some of these, please let me know which, so I can suggest more advanced fixes like checking account status or any ongoing service outages.

Would you like me to guide you through these steps? Also, are you using Booking.com via an app or a web browser on Windows?

Looking forward to your reply!