Installing Grafana in Docker

Hi,

I currently have an existing PHP project running in Docker Linux.
I tried installing grafana but it’s not successful.

I followed the steps here: https://grafana.com/docs/installation/debian/

But after running all the steps and visited my site.
Example: http://erpManagement.local.host:3000

Error shows:

This site can’t be reached

erpManagement.local.host refused to connect.

Please advice. Thank you so much!