Hello Bitemir
When did this error start occurring? To be sure, lets check the status of the rest of the components, all the components should be up and running
- Wazuh indexer: systemctl status wazuh-indexer
- Wazuh manager: filebeat test output and systemctl status wazuh-manager
- Wazuh dashboard: systemctl status wazuh-dashboard
Also, validate there are no errors or warnings related
- Wazuh indexer: grep -i -E "error|warn" /var/log/wazuh-indexer/wazuh-cluster.log
- Wazuh manager: grep -i -E "error|warn" /var/log/filebeat/filebeat and grep -i -E "error|warn" /var/ossec/logs/ossec.log
- Wazuh dashboard: journalctl -u wazuh-dashboard and grep -i -E "error|warn" /usr/share/wazuh-dashboard/data/wazuh/logs/wazuhapp.log