Issue with kube-prometheus-stack addons

[contact2rames]

Hello,
We have used eks-blueprints-add-ons for argo and kube_prometheus_stack and installed in 3 environments. We are using EKS 1.23.

1. In one environment, we see only namespace is created and not any resources/pods under it.

[root@ip-10-71-0-1 ~]# kubectl get ns
NAME STATUS AGE
argocd Active 26d
cert-manager Active 26d
karpenter Active 26d
kube-node-lease Active 26d
kube-prometheus-stack Active 26d

[root@ip-10-71-0-1 ~]# kubectl get pods -n kube-prometheus-stack
No resources found in kube-prometheus-stack namespace.

2. In other environment, kube-prometheus-stack-grafana,kube-state-metrics, prometheus-node-exporter pods got created and running, but not stack-operator and below is the error:

[root@ip-10-73-0-13 ~]# kubectl events kube-prometheus-stack-operator-6f4f8975fb-qwcfk -n kube-prometheus-stack
LAST SEEN TYPE REASON OBJECT MESSAGE
33m (x267 over 44h) Warning FailedMount Pod/kube-prometheus-stack-operator-6f4f8975fb-vvxtg Unable to attach or mount volumes: unmounted volumes=[tls-secret], unattached volumes=[kube-api-access-tck4q tls-secret]: timed out waiting for the condition
8m39s (x1328 over 44h) Warning FailedMount Pod/kube-prometheus-stack-operator-6f4f8975fb-vvxtg MountVolume.SetUp failed for volume "tls-secret" : secret "kube-prometheus-stack-admission" not found
3m40s (x915 over 44h) Warning FailedMount Pod/kube-prometheus-stack-operator-6f4f8975fb-vvxtg Unable to attach or mount volumes: unmounted volumes=[tls-secret], unattached volumes=[tls-secret kube-api-access-tck4q]: timed out waiting for the condition
3m8s Normal Scheduled Pod/kube-prometheus-stack-operator-6f4f8975fb-qwcfk Successfully assigned kube-prometheus-stack/kube-prometheus-stack-operator-6f4f8975fb-qwcfk to ip-10-73-2-246.ap-southeast-2.compute.internal
3m8s Normal SuccessfulCreate ReplicaSet/kube-prometheus-stack-operator-6f4f8975fb Created pod: kube-prometheus-stack-operator-6f4f8975fb-qwcfk
65s Warning FailedMount Pod/kube-prometheus-stack-operator-6f4f8975fb-qwcfk Unable to attach or mount volumes: unmounted volumes=[tls-secret], unattached volumes=[tls-secret kube-api-access-xh9wx]: timed out waiting for the condition
60s (x9 over 3m8s) Warning FailedMount Pod/kube-prometheus-stack-operator-6f4f8975fb-qwcfk MountVolume.SetUp failed for volume "tls-secret" : secret "kube-prometheus-stack-admission" not found

60s (x9 over 3m8s) Warning FailedMount Pod/kube-prometheus-stack-operator-6f4f8975fb-qwcfk MountVolume.SetUp failed for volume "tls-secret" : secret "kube-prometheus-stack-admission" not found

Could you please let me know what i am missing to resolve this issues.