In addition to the code parts mentioned in the audit content that need to be explained, you also need to modify whether you track user data in the tracking in the metadata. So here are two parts that need to be adjusted, not just modifying your code.

This situation is usually caused by an unstable network. You can try changing the browser or switching networks and try to connect again later, or clear the cache and try again later.

Maybe it's because you haven't set a sales region. When publishing an app, you can choose which regions can sell your app. If you want friends in the United States to download your app, you need to at least select the United States as the sales region.