for some reason whenever I click the button enrol on the dev app I get some error that says sorry you can not enrol at this time. Fix, please?

I am currently developing my submission for the SSC and I noticed that the swift playgrounds app for iOS does not have support for the new swift ui features in iOS 18. Are we allowed to submit apps that use these iOS 18 only features?

My app uses Foundation Models and Apple Pencil. The app runs great through Xcode; however, due to Apple Pencil support, it has to be run on a physical device. However, Swift Playgrounds on iPad doesn't support iOS 26. I was just wondering if this is something that can be mentioned in submission notes. eg. The app needs to be compiled in Xcode but run on a physical device.” Or should we expect iPadOS 26 support for Swift Playgrounds by the time of submission? Thank you!