We noticed that your screenshots do not sufficiently reflect your app in use.

Please see attached screenshots for details.
To resolve this issue, please revise your screenshots to ensure that they accurately reflect the app in use on the supported devices. For iPhone, you need a set of 5.5-inch display screenshots and for iPad, you need a set for 12.9-inch display. This set will be scaled appropriately down to other device sizes when viewed on the App Store in each territory.

原因：苹果觉得图片的主题和应用不符
解决：重新做一套图，至少要添加几个应用截图