If more than one dashboard exists in parallel, or if the default dashboard name has been changed, it may be better to change the default dashing dashboard. This default dashboard is the one that appears when you simply type in the IP address. For example locally :
Redirect by default to the dashboard
⇒ http://127.0.0.1:3030/state_dashboard
The settings should be entered in the "dashboard_name" field.
set :default_dashboard, 'dashboard_name' #default dashboard