Vault helm chart not deploying vault containers

Hello All ,
I am following below link and without HA mode:

but once i deploy the helm chart of applications
kubectl get pod output is below:
$ kubectl get pods
vault-0 0/1 Running 0 3m36s
vault-1 0/1 Pending 0 3m35s
vault-2 0/1 Pending 0 3m34s
vault-agent-injector-647c5c9577-gvl57 1/1 Running 0 3m36s

While it try to run the below command :
kubectl exec -ti vault-0 – vault operator init
i am getting below error:
Error initializing: Put “”: dial tcp connect: connection refused
Please help me out.Thanks

Could you try port-forward 8200 and try again?

kubectl port-forward vault-0 8200:8200
kubectl exec -ti vault-0 -- vault operator init

I am not able to do it from inside of the container vault-0 as well.
Same connection refused i am getting there as well.