52109: GCM/FCM unauthorized error
NOTIFICATIONS
ERROR
- ApiKey/Secret is revoked or invalid.
Provide a new API Key/Secret and make sure your application is configured to use it.
- If using IP-Messaging, update your Credential with the new API Key/Secret.
- If using User Notifications, you can either update your Credential or create a new Credential and update your Service's GcmCredentialSid/FcmCredentialSid.