Hello! I understand you're experiencing frequent crashes with the Lib application on your Mac running OS X 10.15.7. To help you better, could you tell me a bit more about when these crashes happen? For example, do they occur when you open the app, during specific actions, or randomly? Also, have you noticed any error messages or patterns?

In the meantime, here are some steps we can try to address the crashing:

1. Restart Your Mac: Sometimes a simple restart can clear temporary glitches that cause apps to crash.

2. Update the App: Make sure you have the latest version of Lib installed. Updates often include fixes for stability issues.

3. Check for macOS Updates: While you're on OS X 10.15.7 (Catalina), check if there are any patches or minor updates available, as system updates can improve app compatibility.

4. Clear App Cache or Data: If possible, clear Lib's cache or temporary files as corrupted data may trigger crashes.

5. Close Other Apps: Running multiple resource-heavy apps simultaneously might strain your system, so try closing other programs.

6. Reinstall the App: Uninstall Lib completely and then reinstall it; this refreshes the app files and can resolve corruption.

If you've tried any of these already, please let me know which ones, so I can suggest more advanced troubleshooting like checking crash logs or verifying any conflicting third-party software.

Does this sound good? And can you share more details about when the crashes happen?