my Rancher 2.6.11 VM got crashed, my 3 nodes k8s cluster is down, i get below error

root@rkemas01:~# kubectl get nodes
E0324 22:53:27.340529   62189 memcache.go:238] couldn't get current server API group list: Get "<https://192.168.9.126/k8s/clusters/c-7xqz9/api?timeout=32s>": x509: certificate signed by unknown authority
E0324 22:53:27.393329   62189 memcache.go:238] couldn't get current server API group list: Get "<https://192.168.9.126/k8s/clusters/c-7xqz9/api?timeout=32s>": x509: certificate signed by unknown authority
E0324 22:53:27.462317   62189 memcache.go:238] couldn't get current server API group list: Get "<https://192.168.9.126/k8s/clusters/c-7xqz9/api?timeout=32s>": x509: certificate signed by unknown authority
E0324 22:53:27.496275   62189 memcache.go:238] couldn't get current server API group list: Get "<https://192.168.9.126/k8s/clusters/c-7xqz9/api?timeout=32s>": x509: certificate signed by unknown authority
E0324 22:53:27.568562   62189 memcache.go:238] couldn't get current server API group list: Get "<https://192.168.9.126/k8s/clusters/c-7xqz9/api?timeout=32s>": x509: certificate signed by unknown authority
Unable to connect to the server: x509: certificate signed by unknown authority

Try to redeploy fleet agent on local cluster, or add

insecure-skip-tls-verify: true

in your kubeconfig, cluster section.