Hi there! I see you're having trouble opening the Egenda app on your Mac running macOS 10.15.7. Let's work through this together. Could you tell me if the app shows any error message when you try to open it? Also, have you tried any steps already like reinstalling the app or restarting your Mac?

Meanwhile, here’s a simple approach we can start with:

1. Force Quit and Restart the App
- Press Command + Option + Esc to bring up the Force Quit Applications window.
- If Egenda is listed there, select it and click Force Quit.
- Wait a few seconds, then try opening the app again.

2. Restart Your Mac
Sometimes a simple reboot clears temporary issues. Click on the Apple menu and select Restart, then try Egenda again.

3. Check for Updates
Ensure your Egenda app and macOS are both updated. Since you're on macOS 10.15.7, it should be compatible, but updating the app can fix bugs.

4. Reinstall Egenda
- Delete the Egenda app by dragging it to the Trash.
- Empty the Trash.
- Download the latest version of Egenda from the official website and reinstall.

If after these steps the app still won't open or crashes, we can dig deeper, like checking app permissions or system logs.

Does any of that fit with what you've tried so far? And is there anything specific you noticed about the app behavior when you open it?