Create cluster error

[QQxiaoyuyu]

First: I import a cluster,but i find the created cluster is error

second: I delete the cluster in kvcontroller and kill kvrocks ,remove nodes.conf

when i create new cluster in kvcontroller ,is err

the json is :
{
"name":"demo-kvcluster",
"nodes":["192.168.1.189:16660","192.168.1.189:16661","192.168.1.175:16662","192.168.1.175:16663","192.168.1.51:16664","192.168.1.51:16665"],
"replicas":2,
"password":"xxxxxxxx"
}

api: /api/v1/namespaces/test-ns/clusters

I try to reset ,but is err too .

I delete cluster and ns ,reboot kv and remove nodes.conf ,the cluster still can't create in kvcontroller