Indeed, nor would I expect it to be able to. The app is an iframe app, and I'm receiving no errors on my end. But that wouldn't even be a prudent debugging step—on the page that says "Sorry! an unexpected error has occurred", there's no iframe src-ing to my app. That leads me to think that the problem's on MySpace's end, and not on mine.
What would cause a problem for me is if the iframe didn't pass along an installState GET parameter when the user wasn't logged in. I'm not absolutely positive, but I'm pretty sure that it's done that successfully in the past.