Proxy Erro to access Grafana

Hello everyone,

I have installed Zabbix on my server running on a DNS and HTTPS, I installed on the same server as Grafana and I want to configure it to be accessed through the url: but I am having the following message: The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET / grafana.


Protocol (http, https, socket)

protocol = https

The ip address to bind to, empty will bind to all interfaces

; http_addr =

The http port to use

#http_port = 3000

The public domain name used to access grafana from a browser

; domain = localhost

Redirect to correct domain if host header does not match domain

Prevents DNS rebinding attacks

; enforce_domain = false

The full public facing url you use in browser, used for redirects and emails

If you use reverse proxy and sub path specify full url (with sub path)

; root_url = http: // localhost: 3000

Virtual Host:

    ProxyPreserveHost On
    ProxyPass / grafana http: // localhost: 3000
    ProxyPassReverse / grafana http: // localhost: 3000

Can anybody help me?