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I don't know if this will work for you but, you should try going to "System Preferences", there you'll find "Security & Privacy" inside Security & Privacy you'll see: General/FileVault/Firewall/Privacy, click "General",  inside you can see the text: "Allow apps downloaded from:" choose "App store and identified developers"

So, summary: System Preferences > Security & Privacy > General > "Allow apps downloaded from: App store and identified developers"

Some apps, even after following these steps will close, when that happens:

System Preferences > Security & Privacy > General, you will find a message from the system that says: "(App) is from an unidentified developer. Are you sure you want to open it?", of course you choose "Open" and the app will launch.

Hope this could help.