Hi there! I see you're having trouble logging into the Flo app with an Error 003 saying "Incorrect username or password," but you can log in just fine on the website. Let’s figure this out together.

First, just to confirm, are you sure you’re entering exactly the same username and password in the app as on the website? Sometimes auto-fill or keyboard quirks can add unwanted spaces or errors.

Here’s a step-by-step approach to try:

1. Double-check credentials in the app: Carefully type your username and password anew in the app to avoid any hidden typos or spaces.

2. Use "Forgot password" in the app: Even if the website login works, resetting your password via the app’s forgot-password flow can reset the authentication tokens and often resolves sync issues between app and server.

3. Clear app cache and data on your device: Since you’re on Windows and using WebKit, if this is a desktop app or web-wrapper, try clearing stored credentials or reinstalling the app to reset any corrupted stored login information.

4. Check for app updates: Make sure your Flo app is fully updated; older versions can sometimes have login bugs.

5. Try logging out everywhere: Log out of the website and app on all devices and then attempt logging back in on just the app.

6. Network issues: Try connecting your device to another network or turn off VPNs that might interfere with authentication.

If all those steps don’t help, it could be an issue with how the app handles the login tokens or synchronizes with Flo’s authentication servers. In that case, I can help you escalate or you can contact [email protected] for more direct backend help.

Would you like me to guide you step-by-step through any of these fixes? Also, could you share if you’re using the app on a Windows desktop or some sort of Windows phone or emulator? That can help tailor the advice a bit more.

Looking forward to your reply!