---
title: Troubleshoot Kibana monitoring
description: Use the information in this section to troubleshoot common problems and find answers for frequently asked questions related to the Kibana monitoring features...
url: https://docs-v3-preview.elastic.dev/elastic/docs-content/pull/4623/troubleshoot/kibana/monitoring
products:
  - Kibana
applies_to:
  - Self-managed Elastic deployments: Generally available in 9.0+
---

# Troubleshoot Kibana monitoring
Use the information in this section to troubleshoot common problems and find answers for frequently asked questions related to the Kibana monitoring features.

## Cannot view the cluster because the license information is invalid

**Symptoms:**
The following error appears in a banner at the top of the screen in Kibana on the **Stack Monitoring > Clusters** page: `You can't view the "<my_cluster>" cluster because the license information is invalid.`
**Resolution:**
You cannot monitor a version 6.3 or later cluster from Kibana version 6.2 or earlier. To resolve this issue, upgrade Kibana to 6.3 or later. See [Upgrading the Elastic Stack](https://docs-v3-preview.elastic.dev/elastic/docs-content/pull/4623/deploy-manage/upgrade/deployment-or-cluster).

## Filebeat index is corrupt

**Symptoms:**
The **Stack Monitoring** application displays a Monitoring Request error indicating that an illegal argument exception has occurred because fielddata is disabled on text fields by default.
**Resolution**
1. Stop all your Filebeat instances.
2. Delete indices beginning with `filebeat-$VERSION`, where `VERSION` corresponds to the version of Filebeat running.
3. Restart all your Filebeat instances.


## No monitoring data is visible in Kibana

**Symptoms:**
The **Stack Monitoring** page in Kibana is empty.
**Resolution:**
1. Confirm that Kibana is seeking monitoring data from the appropriate Elasticsearch URL. By default, data is retrieved from the cluster specified in the `elasticsearch.hosts` setting in the [`kibana.yml`](https://docs-v3-preview.elastic.dev/elastic/docs-content/pull/4623/deploy-manage/stack-settings) file. If you want to retrieve it from a different monitoring cluster, set `monitoring.ui.elasticsearch.hosts`. See [Monitoring settings](https://docs-v3-preview.elastic.dev/elastic/kibana/tree/main/reference/configuration-reference/monitoring-settings).
2. Confirm that there is monitoring data available at that URL. It is stored in indices such as `.monitoring-kibana-*` and `.monitoring-es-*` or `metrics-kibana.stack_monitoring.*`, depending on which method is used to collect monitoring data. At a minimum, you must have monitoring data for the Elasticsearch production cluster. Once that data exists, Kibana can display monitoring data for other products in the cluster.
3. Set the time filter to “Last 1 hour”.  When monitoring data appears in your cluster, the page automatically refreshes with the monitoring summary.
4. If using Elastic Agent, ensure that all integration assets have been installed in the monitoring cluster.