I developed a game with Unity and created the Xcode project, so now I want to publish the game to the App Store. I bought the license and set the correct key in the Mac, but there's a problem: I can't select options in the build settings; it show me only a blank text area. The first time I opened the project, I was able to change the configuration and Xcode showed me the options.

How i can fix this problem?

this is a screen: