Hi there! I understand you're having trouble with the Summary app not recording. To help you better, could you tell me a bit more about what's happening when you try to record? For example:
- Does the app start recording and then stop, or does it not respond at all when you tap record?
- Are you getting any error messages?
- Have you checked if the app has permission to use your microphone?

Once I have a bit more info, I can guide you step-by-step. Meanwhile, here are some initial checks you can try on your Mac OS X 10.15.7:

1. Check Microphone Permissions:
- Go to System Preferences > Security & Privacy > Privacy tab.
- Select Microphone from the left side.
- Make sure Summary app is checked to allow access.

2. Restart the App:
- Quit the Summary app completely.
- Relaunch it and try recording again.

3. Restart Your Mac:
- Sometimes a simple reboot can clear temporary glitches.

4. Update the App:
- Verify if there are updates available for the Summary app via the App Store or the official site, and install them.

If you’ve already tried those steps, please let me know so I can help with more advanced troubleshooting!

Are you able to share the answers to the above or any other details?