AppFurnace Player 2.2 has been released to the App Store.
This fixes a number of issues related to iOS7, including the QR code scanner crashing on iPad. It also fixes some issues where the app crashes on downloading some AppFurnace apps.
NOTE: Please update your apps before trying to run them. 2.2 has an issue we're looking into where apps will not run until they are updated. We're submitted 2.2.1 that fixes this issue to the App Store, and it'll be released as soon as Apple review it (probably around 10/10/2013)