can you please provide the solution that how I can fix the error as I am getting same error during pushing notification to client device.
I am using capacitor plugin for fcm and getting error Response: { "error": { "code": 400, "message": "The registration token is not a valid FCM registration token", "status": "INVALID_ARGUMENT", "details": [ { "@type": "type.googleapis.com/google.firebase.fcm.v1.FcmError", "errorCode": "INVALID_ARGUMENT" } ] } }