No, I didn’t upgrade the OS. It just stopped working. I just get this “Unable to open Atom because a problem occurred” error.
My emphasis on the Mac version is based on the fact that on the atom.io download page it is written “For macOS 10.9 or later”.
Running from within the app package I get this error:
dyld: Library not loaded: /System/Library/Frameworks/GameController.framework/Versions/A/GameController
Referenced from: /Applications/Atom.app/Contents/Frameworks/Electron Framework.framework/Versions/A/Electron Framework
Reason: image not found
Trace/BPT trap: 5
I found this topic on github https://github.com/atom/atom/issues/15297 so I will try the atom 1.18 version.