I think you have to download the Developer app in appstore on your Mac or iPhone, and do the purchase from there in order to work.

You should check you dependencies as well, in my case i faced the same issue while building an eccomerce app, and upon uploading the app to app store connect i got the same message, whilst my app has nothing to do with the use of camera, however im using stripe as a payment processor service, and stripe has a component where you can scan a card to process the payment and therefore the message.