According to Downdetector, a website that raises reports of problems in digital services, complaints started at 11 am. The App Store message offline on Apple's status panel (apple.com/support/systemstatus) records instability at 12:27 pm.
Complaints from users on Twitter indicate that they are unable to download anything from the App Store, and that error messages such as "Couldn't connect App Store" are displayed on the phone after the download attempt.
With the bug, iTunes and the App Store are inactive, and it is not possible to complete purchases or download applications according to some Brazilian users. The Downdetector map, however, shows that the problem affects Japan, regions of the United States and Europe more. The App Store also has the same error on macOS.