Elasticsearch exception [type=cluster_block_exception, reason=blocked by: [FORBIDDEN/12/index r【已解决】

Caused by: org.elasticsearch.ElasticsearchStatusException: Elasticsearch exception [type=cluster_block_exception, reason=blocked by: [FORBIDDEN/12/index read-only / allow delete (api)];]
        at org.elasticsearch.rest.BytesRestResponse.errorFromXContent(BytesRestResponse.java:177)

PUT _settings
{
  "index": {
    "blocks": {
      "read_only_allow_delete": "false"
    }
  }
}