Thanks, Willy. I don't think this is anything I have done in the game itself. When running with my iPad connected to the Macbook running through Xcode, the console says it's requesting the info, then queuing the payment, and then the game crashes. I'm never promoted for a login?!? Xcode is highlighting the code in the screenshot above. So I don't think it's my game since I laid the code exactly as outlined above which is following the test file.
I'm going to remove the in-app purchases and split the game in two. I'll release a full version first, and then take that link and release a demo version with a link to the full version.