gremlin | Kubernetes cluster not showing up

[Kalaikkovan]

after installation , only worker nodes are visible and no k8s cluster objects in gremlin website . if I look at the controller manager logs , below is what I could see . I've given cluster access to chao service account

error updating: error listing pods: pods is forbidden: User "system:serviceaccount:gremlin:chao" cannot list resource "pods" in API group "" at the cluster scope error updating: error listing pods: pods is forbidden: User "system:serviceaccount:gremlin:chao" cannot list resource "pods" in API group "" at the cluster scope error updating: error listing pods: pods is forbidden: User "system:serviceaccount:gremlin:chao" cannot list resource "pods" in API group "" at the cluster scope error updating: error listing pods: pods is forbidden: User "system:serviceaccount:gremlin:chao" cannot list resource "pods" in API group "" at the cluster scope error updating: error listing pods: pods is forbidden: User "system:serviceaccount:gremlin:chao" cannot list resource "pods" in API group "" at the cluster scope error updating: error listing pods: pods is forbidden: User "system:serviceaccount:gremlin:chao" cannot list resource "pods" in API group "" at the cluster scope 2021/06/04 05:44:07 error running gremlin kubernetes client: error listing pods: pods is forbidden: User "system:serviceaccount:gremlin:chao" cannot list resource "pods" in API group "" at the cluster scope