Install Status Panel plugin but got this error when try to add it on dashboard :
Plugin Error
Fetch error: 404 Not Found Instantiating http://grafana.clioonline.dk:3000/public/app/plugins/panel/graph/legend Loading http://grafana.clioonline.dk:3000/public/plugins/vonage-status-panel/status_ctrl.js Loading plugins/vonage-status-panel/module
Grafana server was restarted, cache was purged via DevTools. But all of these not help.