How to fix persistent errors in Android app?

Question

Java

During the test on a real device, the application gives an error every 2-5 seconds: "The application" App "failed again" error then disappears and reappears.
In the application, I use analytics: FB SDK, Firebase, AppMetrica.

Answer 1

Include Crashlytics in your Firebase project. Here's a link to help: firebase.google.com/docs/crashlytics
Build the app and run it - let the app crash.
In the Firebase console, select your project, go to the Crashlytics section, to do this, click on the gear in the left panel. In the "Errors" block, with a high probability, you will see the error you are interested in.
There will be a Stack trace and the line that caused the error.
Good luck!

Answer 2

Remove the logs and see what's in them. Without logs, this is not an error, but nonsense.