CPU and RAM missing at generic k8s

I installed Rancher 2.6.9 in docker and added generic k8s cluster ino rancher.
K8s version is v1.23.1.
I see all nodes but no CPU/mem stats from them.
I already installed monitoring stack and it shows me various k8s metrics but still no CPU/mem from nodes.

Please give me a prompt, how to find a cause of missing metrics.