Update 13.5

I have this problem too. Something with the authentication must have become corrupted.

The solution is to “Offload” the app and reinstall. Unlike deleting the app, offloading it will not delete the data for that app stored on your phone.

Settings > General > iPhone Storage

Select the problematic app and tap Offload App. You can immediately reinstall from the same screen or reinstall later when you need the app.

I have several apps that won't open after updating to 13.5. I don't get any message, apps start then just close. I tried deleting an app and then tried to reload from App Store, it never reloads just get a spinning circle and then quits after a while. I tried to sync to my iMac and after a about a min I get a message saying that that the sync failed....

Yes, My wife's phone updated now an app on our daughter's phone is giving us the same message. I've read there is a major issue with this update and possibly family sharing.

ps do you live in a country in trade sanction or dispute with USA?

Thanks for the info! That corrected our issue. :)

No.

Did you change anything else recently like your AppleID?

Are you sharing paid/for apps owned by someone else on family sharing?

Can you delete the app and reinstall if it is free app?

Thanks. I was also responding to someone in Russia with the same problem is all.

I have now passed on the offload suggestion