Helm rancher installation - not coming up ? error?

Hi,
I’ve followed this guide :

And ran the ‘helm install rancher’, and got this output :

[root@k8s-master nginx]# helm install rancher rancher-stable/rancher   --namespace cattle-system   --set hostname=k8s-master.cisco.com   --set bootstrapPassword=admin
Error: INSTALLATION FAILED: Internal error occurred: failed calling webhook "webhook.cert-manager.io": Post "https://cert-manager-webhook.cert-manager.svc:443/mutate?timeout=10s": context deadline exceeded

But, it seems to be working, as I’m running this :

[root@k8s-master ~]# kubectl -n cattle-system rollout status deploy/rancher
deployment "rancher" successfully rolled out

The ‘Rancher’ pods are ‘Running’ but the GUI is not coming up…
Do you know by chance what can I check ??.. I’m lost

BTW -
Here is my ‘kubectl get pods --all-namespaces’ output :

[root@k8s-master ~]# kubectl get pods --all-namespaces
NAMESPACE       NAME                                       READY   STATUS    RESTARTS   AGE
cattle-system   helm-operation-25m7g                       1/2     Error     0          51m
cattle-system   helm-operation-2cbl7                       1/2     Error     0          12m
cattle-system   helm-operation-2cdm5                       1/2     Error     0          50m
cattle-system   helm-operation-45ggf                       1/2     Error     0          32m
cattle-system   helm-operation-5cz6j                       1/2     Error     0          48m
cattle-system   helm-operation-5fm9v                       1/2     Error     0          19m
cattle-system   helm-operation-5l6l7                       2/2     Running   0          7m46s
cattle-system   helm-operation-5wggh                       1/2     Error     0          41m
cattle-system   helm-operation-5wngw                       1/2     Error     0          15m
cattle-system   helm-operation-6kfw2                       1/2     Error     0          44m
cattle-system   helm-operation-6spgk                       1/2     Error     0          36m
cattle-system   helm-operation-6tssw                       2/2     Running   0          5m46s
cattle-system   helm-operation-7bj9m                       2/2     Running   0          4m46s
cattle-system   helm-operation-7gdhn                       1/2     Error     0          57m
cattle-system   helm-operation-7q8zt                       1/2     Error     0          52m
cattle-system   helm-operation-8phl4                       1/2     Error     0          20m
cattle-system   helm-operation-92mlg                       1/2     Error     0          40m
cattle-system   helm-operation-976md                       1/2     Error     0          42m
cattle-system   helm-operation-9fx8p                       1/2     Error     0          28m
cattle-system   helm-operation-9v56c                       1/2     Error     0          39m
cattle-system   helm-operation-d4bwr                       1/2     Error     0          30m
cattle-system   helm-operation-fbc79                       1/2     Error     0          45m
cattle-system   helm-operation-fbkbb                       1/2     Error     0          26m
cattle-system   helm-operation-gnxc7                       1/2     Error     0          56m
cattle-system   helm-operation-gs88p                       1/2     Error     0          23m
cattle-system   helm-operation-h4jtc                       1/2     Error     0          24m
cattle-system   helm-operation-hjp2l                       1/2     Error     0          11m
cattle-system   helm-operation-hk99w                       1/2     Error     0          17m
cattle-system   helm-operation-hnn9n                       1/2     Error     0          35m
cattle-system   helm-operation-j58qc                       2/2     Running   0          6m46s
cattle-system   helm-operation-jnf95                       1/2     Error     0          46m
cattle-system   helm-operation-jrxrb                       1/2     Error     0          55m
cattle-system   helm-operation-k6ckr                       1/2     Error     0          22m
cattle-system   helm-operation-kh249                       1/2     Error     0          34m
cattle-system   helm-operation-lfxjk                       1/2     Error     0          25m
cattle-system   helm-operation-m7q4j                       1/2     Error     0          18m
cattle-system   helm-operation-mkzht                       1/2     Error     0          49m
cattle-system   helm-operation-nlzd6                       2/2     Running   0          8m46s
cattle-system   helm-operation-nr962                       1/2     Error     0          33m
cattle-system   helm-operation-nrsxt                       1/2     Error     0          31m
cattle-system   helm-operation-pdg5g                       2/2     Running   0          105s
cattle-system   helm-operation-pg6hd                       1/2     Error     0          47m
cattle-system   helm-operation-pzxdn                       1/2     Error     0          53m
cattle-system   helm-operation-pzxsf                       1/2     Error     0          54m
cattle-system   helm-operation-q69jp                       1/2     Error     0          21m
cattle-system   helm-operation-q9tmw                       1/2     Error     0          59m
cattle-system   helm-operation-qbdzn                       1/2     Error     0          38m
cattle-system   helm-operation-qng5s                       1/2     Error     0          16m
cattle-system   helm-operation-rdwnm                       1/2     Error     0          29m
cattle-system   helm-operation-rpfp9                       2/2     Running   0          9m46s
cattle-system   helm-operation-t5fd4                       1/2     Error     0          14m
cattle-system   helm-operation-tl5dt                       1/2     Error     0          13m
cattle-system   helm-operation-tznjn                       2/2     Running   0          45s
cattle-system   helm-operation-v754c                       2/2     Running   0          3m46s
cattle-system   helm-operation-vdqsh                       1/2     Error     0          10m
cattle-system   helm-operation-vgfmn                       1/2     Error     0          37m
cattle-system   helm-operation-vp6np                       1/2     Error     0          27m
cattle-system   helm-operation-w77qr                       2/2     Running   0          2m45s
cattle-system   helm-operation-x7mk2                       1/2     Error     0          43m
cattle-system   helm-operation-zhzhk                       1/2     Error     0          58m
cattle-system   rancher-8c548f4f6-8lb5r                    1/1     Running   0          81m
cattle-system   rancher-8c548f4f6-mqjw7                    1/1     Running   0          81m
cattle-system   rancher-8c548f4f6-nkzrc                    1/1     Running   0          81m
cert-manager    cert-manager-6d6bb4f487-lms5t              1/1     Running   0          131m
cert-manager    cert-manager-cainjector-7d55bf8f78-tqp6c   1/1     Running   0          131m
cert-manager    cert-manager-webhook-5c888754d5-bzgrg      1/1     Running   0          131m
kube-flannel    kube-flannel-ds-6s59h                      1/1     Running   0          159m
kube-flannel    kube-flannel-ds-mts4f                      1/1     Running   0          158m
kube-flannel    kube-flannel-ds-tv2fl                      1/1     Running   0          158m
kube-system     coredns-f9fd979d6-dt7sv                    1/1     Running   0          164m
kube-system     coredns-f9fd979d6-wpft2                    1/1     Running   0          164m
kube-system     etcd-k8s-master                            1/1     Running   0          164m
kube-system     kube-apiserver-k8s-master                  1/1     Running   0          164m
kube-system     kube-controller-manager-k8s-master         1/1     Running   0          164m
kube-system     kube-proxy-92ctm                           1/1     Running   0          164m
kube-system     kube-proxy-svsxg                           1/1     Running   0          158m
kube-system     kube-proxy-wtsk8                           1/1     Running   0          158m
kube-system     kube-scheduler-k8s-master                  1/1     Running   0          164m

thanks in advance !