I\'ve begun testing my iOS app on my iPhone. Everything works great for a week or so and then my app starts to crash immediately when I try to open it. When I check the logs
I had the same situation with an app which Bundle Identifier has been moved to another Apple Developer Team.
After Bundle Identifier was moved, a previous build was containing a provisioning profile which was no longer valid, and I got this error message in logs.
I guess the same happens if you delete the Provisioning Profile or if it is invalidated for whatever reason.