Blank page of Advanced Monitoring: Grafana: Looks like there’s nothing here

Symptoms

• Advanced Monitoring shows a blank screen

• There is the following message on the Grafana page:

  Looks like there's nothing here

• There are no dashboards in the Grafana application

• Attempts to reinstall Grafana result in the error:

  ERROR: TypeError: Argument 1 passed to PleskExtMonitoringDashboardPanelBuilder::setTargets() must be of the type array, null given, called in /opt/psa/admin/plib/modules/monitoring/library/Dashboard/TemplateBuilder/HddDashboardTemplateBuilder.php on line 45 (PanelBuilder.php:116)

Cause

The Advanced Monitoring installation is corrupted

Resolution

1. Connect to the server via SSH

2. Remove Grafana and Advanced Monitoring extensions

   # plesk bin extension -u grafana
   # plesk bin extension -u monitoring

3. Install Advanced Monitoring:

   # plesk bin extension -i monitoring

   Note: Grafana will be installed alongside with Advanced Monitoring.