Google Cloud Monitoring is not working in grafana-7.3.3-1.x86_64

Hi Team,
Somehow i am unable to get rid of this below error to use Google Cloud Monitoring even though we have granted all permissions.
“error”: { “code”: 403, “message”: “Permission monitoring.timeSeries.list denied (or the resource may not exist).”, “status”: “PERMISSION_DENIED” } }
Google Cloud Monitoring: Forbidden: 403. Permission monitoring.metricDescriptors.list denied (or the resource may not exist).
Can anyone please guild me to fix this.
Thank you very much.