"wallet closed unexpectedly" when trying to open/install desktop wallet

macOS High Sierra 10.13.2

I downloaded the MacOS desktop wallet…I expanded the files. Clicked on the musicoin wallet app icon and it asks me if I want to open the file from github. I continue and it says over and over again that the wallet quit unexpectedly. Anyone know why and how i can solve this? I have also tried on my PC with windows 10 with the same result.

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