Where are the instructions for this process

I first built WordPuzzleAids over 2 years ago. I built it on my MacBook Pro, using Xcode and Swift. The destination for the build was my iPhone. Two weeks ago, the app stopped working on the iPhone: I thought I might need to rebuild it on the on the MacBook and "re-deliver" it to the iPhone. The build failed with: CodeSign /Users/paddy/Library/Developer/Xcode/DerivedData/WordPuzzleAids-dnwilitxxdvpzablseyseujsllag/Build/Products/Debug-iphoneos/WordPuzzleAids.app (in target 'WordPuzzleAids' from project 'WordPuzzleAids') cd /Users/paddy/Projects/ThirdParty/WordPuzzleAids Signing Identity: "Apple Development: John Patterson (G9M8AH9CTD)" Provisioning Profile: "iOS Team Provisioning Profile: *" (650d11d4-ecd2-4458-a146-3cb55438e9dc) /usr/bin/codesign --force --sign 1FC4588FA2EAD7DCF9AAC9CDC823B567D76BCBE8 --entitlements /Users/paddy/Library/Developer/Xcode/DerivedData/WordPuzzleAids-dnwilitxxdvpzablseyseujsllag/Build/Intermediates.noindex/WordPuzzleAids.build/Debug-iphoneos/WordPuzzleAids.build/WordPuzzleAids.app.xcent --timestamp\=none --generate-entitlement-der /Users/paddy/Library/Developer/Xcode/DerivedData/WordPuzzleAids-dnwilitxxdvpzablseyseujsllag/Build/Products/Debug-iphoneos/WordPuzzleAids.app /Users/paddy/Library/Developer/Xcode/DerivedData/WordPuzzleAids-dnwilitxxdvpzablseyseujsllag/Build/Products/Debug-iphoneos/WordPuzzleAids.app: errSecInternalComp I have attached the build documentation file Build WordPuzzleAids_2024-08-29T21-17-09.txt

Unable to Submit for Review The items below are required to start the review process: You must select a primary category for your app.

As a developer, preparing my app for review, where in App store connect where do I select a primary category for my app?

I am trying to submit a new app for review. Part of the process requests that I submit images of the app in different formats: 5.5" iPhone, 12.5" iPad, etc. I used the Xcode simulator to create the required views then used Shift, Command, 4 and Space bar to capture the different image. When I tried to drag these images onto the page, a message told me that my images were the wrong size. I need from you is a step-by-step procedure as to how to generate the correct image for any one of the correct devices.