Ntopng datasource in grafana not working

following:

1 I dont get the database to sync with port 3001
http://localhost:3001/lua/modules/grafana

2 port 3000 snyc the database
http://localhost:3000/lua/modules/grafana

3 pasting the link into my browser fails this

request page cannot be found but partly displasy ntop page

what is going wrong , the data base is testing , but I cannot see data ??

thanks

http://localhost:3000/lua/http_status_code.lua?message=not_found&referer=localhost%3A3000%2Flua%2Fmodules%2Fgrafana&error_message=