Couldn't execute POST against https://gitlab.ops.acme.com/api/v4/runners

Need your assistance/advise on this matter. I was able to deploy GitLab EE using all default configurations (e.g. internal Nginx Ingress Controller, etc.) exactly like the settings in the YAML below. Had all domains (minio.ops.acme.com, registry.ops.acme.com and gitlab.ops.acme.com) and FQDN endpoint properly-registered in Kubernetes cluster using Helm Chart on AWS with whitelisting but still had issues in revving up GItLab Runner pod with error, “couldn’t execute POST against https://gitlab.ops.acme.com/api/v4/runners: Post https://gitlab.ops.acme.com/api/v4/runners: EOF”. I’m already running out of options. Please advise. Thanks.

COMMAND: helm install --replace --name=gitlab --namespace=gitlab-acme --kubeconfig=acme.kubeconfig --values=gitlab-values.yaml gitlab/gitlab

################### File: gitlab-values.yaml ########################
global:
edition: ee
ingress:
class: nginx
hosts:
domain: ops.acme.com

certmanager-issuer:
email: devops@acme.com

postgresql:
persistence:
storageClass: gp2
size: 10Gi

minio:
persistence:
storageClass: gp2
size: 50Gi

redis:
persistence:
storageClass: gp2
size: 10Gi

gitlab:
gitaly:
persistence:
storageClass: gp2
size: 10Gi

prometheus:
install: false

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