Firebase, Maps error : libc Fatal signal libart.so FinalizerDaemon

Question

OS: Android 8.1.0

implementation "com.google.firebase:firebase-core:15.0.2"
implementation "com.google.firebase:firebase-database:15.0.1"
implementation "com.google.firebase:firebase-auth:15.1.0"

This is a normal code (as in the examples). I'm writing data to the database.

DatabaseReference db = FirebaseDatabase.getInstance().getReference("...");
db.child(firebaseUserId).push().setValue(...);

I receive an error.