Hi there! I see you're having trouble with the Postmates app not working. Could you tell me a bit more about what exactly is happening? For example, does the app fail to open, freeze at some point, show an error message, or something else? Any detail will help me guide you better.

In the meantime, here are some general steps that often help fix app issues on Windows devices using a WebKit-based browser:

1. Refresh or Restart the Browser: Sometimes, simply refreshing the browser tab or closing and reopening the browser can resolve temporary glitches.

2. Clear Cache and Cookies: Over time, cached files or cookies might cause loading problems. Clearing these for the Postmates site can help.

3. Check for Browser Updates: Make sure your browser is up to date to avoid compatibility issues.

4. Try a Different Browser: Since you’re on Windows and using WebKit (which could be Safari or another WebKit-based browser), try opening Postmates in a different browser like Chrome or Firefox to see if the issue persists.

5. Check Your Internet Connection: Ensure your network is stable and running at a decent speed.

6. Disable Browser Extensions: Sometimes, extensions interfere with app functionality. Try disabling them temporarily.

If you’ve tried these or if the app itself (mobile or desktop) is the issue, let me know so I can suggest next steps like reinstalling the app or looking into account/payment issues.

Does any of this match what you’ve been experiencing so far?