Getting exception while retrieving token from Firebase

[slackvishal]

[firebase_messaging/unknown] java.io.IOException: TOO_MANY_REGISTRATIONS
Getting this exception when I try to get firebase token
String? value = await FirebaseMessaging.instance.getToken();
Why does it happen? What am I missing? This happens only in the Play store version of the app, not locally. I got this exception through Firebase Crashlytics.