itunes无法添加音乐到曲库，问题代码9039

在这个问题的解决方法。请你打开iTunes 注销你的苹果ID。关闭iTunes 退出后台 然后重启电脑 从新打开iTunes登录苹果ID。再次看看。

以下是英文社区有人这样解决了

I had error 9039, can't access iTunes Cloud Library. Top-right icon kept circling (for days) and podcasts wouldn't update.

I went to: Account > Sign-out... Signed out of iTunes. Quit iTunes and restarted it. Signed back in (Account > Sign in...) and the problem cleared up. No more error, and podcasts started to show again.

升级iOS10.15.1看看。