Hi there! I understand that your New Yorker app on your Mac is closing abruptly without even opening properly. That must be inconvenient. To help you better, could you let me know if you see any error messages when this happens, or does it just shut down immediately? Also, have you tried any fixes so far, like restarting your Mac or reinstalling the app?

While I wait for your details, I'll share some general steps to tackle app crashes on macOS 10.15.7, which might help:

1. Force Quit and Restart the App
- Go to the Apple menu on the top left > Force Quit.
- Select the New Yorker app if it’s listed, then click Force Quit.
- Try reopening the app to see if it works.

2. Restart Your Mac
- Sometimes, a simple restart flushes temporary glitches. Click the Apple menu > Restart.

3. Check for App Updates
- Open the App Store on your Mac.
- Click on Updates and see if there's an update available for the New Yorker app. An update might fix known crash bugs.

4. Reinstall the New Yorker App
- Delete the app by dragging it to the Trash.
- Restart your Mac.
- Download and install the New Yorker app again from the App Store.

5. Test in a New User Account
- Create a new user on your Mac (Apple menu > System Preferences > Users & Groups).
- Log in to that account and try launching the app.
- If it works there, the issue might be related to your user profile preferences or settings.

Those steps cover many common reasons apps fail to open properly on macOS. If you’ve already tried any of these or still see the app crash, please let me know more about the behavior or any error messages you observe. That will help me guide you to a more targeted fix or escalate if necessary.

Are you satisfied with starting here? I’m happy to keep helping!