Firebase Analytics not working

[ProTec Games]

After updating my app to v8.0 Firebase stopped showing Analytics on both Google Analytics and Firebase Console. It shows analytics of lower versions of my app but doesn't work for the latest version, the console only shows succesful but doesn't show data. I didn't made any change in Firebase Analytic code on Main activity On Create 

mFirebaseAnalytics = FirebaseAnalytics.getInstance(this);

method = "custom event";

Bundle bundle = new Bundle();

bundle.putString(FirebaseAnalytics.Param.METHOD, method);

In the update I just added some material ui importing

import com.google.android.material.dialog.MaterialAlertDialogBuilder;
import com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton;

The app release can be getting from GitHub