I have an old iPhone 3GS (iOS 6.1.3) and the remote web page works fine. It also works fine on my Windows Phone 8, an HTC 8x. However, it won't work at all on my iPod Touch (iOS 7.0.4), I just see a basic web page and none of the links work. I hope you manage to find a fix soon. Our band members all seem to have iPads, so the "Stage" view isn't available to them.
I am willing to help with testing, because I'm not a developer, and don't have a Mac either.