Hi there! I see your BNP Paribas Open app on your Mac is getting stuck on the "Turn on location services" page and doesn't proceed further. Let's work through this together and get your app functioning properly.

First, just to clarify:
- Are you running the app as a native macOS app, or are you accessing it via a browser on your Mac?
- Have you already checked whether location services are enabled on your Mac?
- Also, is this happening consistently every time you open the app, or did it start recently?

Meanwhile, here's a step-by-step approach to address the location services block on macOS 10.15.7:

1. Verify Location Services Settings on Your Mac:
- Go to System Preferences > Security & Privacy > Privacy tab.
- Select Location Services from the left panel.
- Ensure that Enable Location Services (checkbox at the top) is checked.
- Look for the BNP Paribas Open app in the list (or the browser you're using if accessing via browser) and make sure it is allowed to use location services.

2. Restart Your Mac and the App:
- Sometimes restarting your Mac can resolve temporary glitches with location services.
- After the restart, open the app again to see if it progresses past the location prompt.

3. Reset Location & Privacy Settings:
- If the app still hangs, you can reset location permissions using Terminal:
- Open Terminal (found in Applications > Utilities).
- Enter the command: tccutil reset LocationServices
- This will reset all location permissions, and apps will ask for location access again.
- After this, open the app and when prompted, allow location access.

4. Check for App Updates:
- Ensure your BNP Paribas Open app is updated to the latest version compatible with macOS Catalina (10.15.7).

5. If Using Browser Access:
- Check your browser’s settings to ensure location access is allowed.
- In Safari: Safari > Preferences > Websites > Location, then ensure BNP Paribas Open’s website is allowed.
- You might also try clearing your browser cache and cookies.

If you’ve tried some of these already, just let me know which ones, and we can dive deeper into more advanced troubleshooting.

Does this make sense so far? Would you like me to guide you through any of these steps in more detail?