Screen just flashes over and over and won't load game code and now it won't revert and now I can't access my game

the screen just flashes after elect what project I want to work on and the only thing I can do is use the editor tool and the AI on there isn’t as good as the one on the prototype view which is weird because I am assuming they are the same AI but I can access my game any more so if there is one way I can access my game again without ruining it that would be awesome