Hi! I understand you're having trouble accessing the Royal Rewards website or app on your Mac with OS X 10.15.7. I'd like to help get this sorted for you. To start, could you tell me a bit more about what happens when you try to access the site? For example, do you get an error message, the page just doesn’t load, or something else?

Meanwhile, here’s a general step-by-step approach to try:

1. Clear Your Browser Cache and Cookies: Sometimes stored data can cause loading issues. On Safari, you can go to Safari > Preferences > Privacy > Manage Website Data, then remove data related to Royal Rewards or clear all if you prefer.

2. Try a Different Browser: Since OS X 10.15.7 supports most browsers like Chrome or Firefox, try using one of those to see if the problem is browser-specific.

3. Check Your Network Connection: Ensure your internet is working fine and not blocking the site (sometimes corporate or public networks have restrictions).

4. Disable VPNs or Proxies: If you are using any VPN or proxy service, disable it temporarily as it can interfere with website access.

5. Update the Royal Rewards App: If the issue is in the app, make sure it's updated to the latest version available from the Mac App Store or wherever you installed it.

6. Password and Account Check: Sometimes login troubles relate to incorrect credentials. Double-check your email and password are correct, and try resetting your password if needed.

If you’ve already tried any of these, please let me know which ones, and if there’s any specific error message or behavior. That way, I can help you dig a bit deeper or suggest alternative fixes.

Are you able to share what exactly you see when trying to access the site or app? That’ll help me guide you better.