Clustering with rancher

After resetting the cluster and machines that I had set up before, I am encountering the following error. Do you have any solution suggestions for this?

[ERROR] [workerPlane] Failed to bring up Worker Plane: [Failed to verify healthcheck: Failed to check http://localhost:10256/healthz for service [kube-proxy] on host []: Get “http://localhost:10256/healthz”: dial tcp [::1]:10256: connect: connection refused, log: E0429 13:36:10.669486 13093 run.go:74] “command failed” err=“open /proc/sys/net/netfilter/nf_conntrack_max: permission denied”]