Kibana index is unresponsive

Elastic Stack Kibana
3

I ran the query you mentioned and I got the response.

{
"error": {
"root_cause": [
{
"type": "illegal_argument_exception",
"reason": "No endpoint or operation is available at [_field_caps]"
}
],
"type": "illegal_argument_exception",
"reason": "No endpoint or operation is available at [_field_caps]"
},
"status": 400
}

I tried the link with more than one index. Everything has the same response.