Hi! I see you're having trouble with the restore button not working in the Tile Explorer app on your Mac running OS X 10.15.7. Just to clarify so I can assist you better:

- When you say the restore button doesn't work, is this within the app itself to recover data or settings?
- Are you seeing any error messages or does the button simply do nothing when you click it?
- Have you tried quitting and reopening the app or restarting your Mac yet?

Once I have these details, I can guide you through some troubleshooting steps. In the meantime, a good starting point would be to force quit the app and relaunch it, as sometimes that helps reset unresponsive buttons. Here's how to force quit on your Mac:

1. Click the Apple menu in the top-left corner.
2. Select "Force Quit..."
3. Find "Tile Explorer" in the list, select it, and click "Force Quit".
4. Then restart the app and check if the restore button responds.

Let me know how that goes or if you've already tried that!