NO CODES! PLEASE HELP!!!OMG

I made a page that you can go to a secret page if you swap the image View

and I also placed a round button that you can go to another page if you tap on a buttom.

When i used the simulater, the swaping worked but the buttom did not work and it gave this error,

return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));

Both of the things doen't work at the same time????