Not this is not working for me on my mac Everytime i open the application it crashes/closes by its self
As I said after your comment:
Some of the code calls for "./Content-Release/Assets/Gui/" and others call for "./Content-Release/Assets/GUI/". Make a shortcut of "./Content-Release/Assets/GUI/" in the Assets folder named "Gui" and that will fix the problem for now.
Instead of running the shell script, run the appropriate executable for your machine yourself.