elasticsearch – cluster block exception for system index of kibana

{\"type\":\"cluster_block_exception\",\"reason\":\"index [.kibana_analytics_8.11.4_001] blocked by: [FORBIDDEN/8/index write (api)];\"},\"status\":403},{\"index\":\".kibana_analytics_8.11.4_001\",\"id\":\"dashboard:ee798f25-ae50-5350-ad24-9d348c8163fc\",\"cause\":{\"type\":\"cluster_block_exception\",\"reason\":\"index [.kibana_analytics_8.11.4_001] blocked by: [FORBIDDEN/8/index write (api)];\"},\"status\":403},{\"index\":\".kibana_analytics_8.11.4_001\",\"id\":\"dashboard:345\"

Disk space is less then 80% and cluster setting info looks fine.

curl -k -u admin:admin -X GET "https://IP:9200/_cluster/settings" -H 'Content-Type: application/json'

output:

{
  "persistent":{},
  "transient":{}
}

why kibana index giving error and how to solve this issue. please reply soon

I am doing upgrade from 7.17 to 8.11 that time i am facing these issues