I am trying to register my iPad as a device on the developer portal but it keeps declaring it as an iMac. Do you know if this is a typical problem?

How can I prevent an old app from showing in the 'More by same developer' list in the app store?

I have had an App rejected by App Connect with the reason that it crashed on launch when using an iPad. They have sent me a crash report that I think suggests I have a run-time issue although I have no idea what could be causing it. I have run the app on an actual iPad and it launches perfectly. I understand that the problem occurs in Thread 0, but I was also hoping for a Swift line number. I would really appreciate help with what the issue might be. Here is a link to the crash report https://developer.apple.com/forums/content/attachment/0f48e354-6d33-4fd2-abc0-9a241a497e35