If you can’t view crash reports in the Crashes organizer, verify that you performed all these steps to fully enable the crash report service for your app.
Distribute your app using TestFlight or through the App Store.
Distribute the app using TestFlight (iOS, tvOS, watchOS) or distribute the app through the App Store. When you upload the app to iTunes Connect, include the symbols (ensure that the “Include app symbols for your application…” box is checked before you click Upload). Don’t delete the archive that you upload to iTunes Connect.
On the devices, share crash data with developers.
TestFlight users automatically agree to share crash data but users who download your app from the App Store will need to agree to share crash data with developers.
In Xcode, enter your team Apple ID.
To download crash reports, add your Apple ID account. Only the Team Agent or Admin role, or an iTunes Connect user, can download crash reports.
Allow a few days after releasing your app for Apple to collect and organize crash logs into crash reports.