My game wont start after i click a button

I built a test game to see if my menu would work, and it doesn't. I tried it in the preview window inside the editor and it worked perfectly. When i build though, this is what happens. I click on the exe, it brings up the configuration window, i click play, it brings up my menu, now if i click start or credits or anything, it automatically stops the game. doesnt even give me an error so i can search it up. is it a problem with my builder option? or is it a problem with my scripts? im using unity 3.4.2 . If there is anymore info needed ill provide it.