Notification plugin -- Firebase push notifications

I’m using the plugin plugin.notifications.v2.firebase for one of my games in order to send notifications via Firebase Cloud Messaging. I’ve implemented all the steps for iOS and android, nevertheless when I configure a campaign and send a notification to both platforms using the Firebase Cloud Messaging, my iOS device receive the notification, but my android device don’t. Does it work for anyone here in android?

I’ve included google-services.json in my project, included the parameter useGoogleServicesJson = true in android tabla of build.settings file, and also called plugin.notifications.v2.firebase in my code.