Mongodb charts on prem add user issue

Hi, I was able to install charts and past testing connection string. But while adding a user i get the following error:

sudo docker exec -it $(sudo docker container ls --filter name=_charts -q) charts-cli add-user --first-name ‘Admin’ --last-name ‘Admin’ --email ‘’ --password ‘admin@2020’ --role ‘UserAdmin’

add-user command error: An error occurred authenticating: request to http://localhost:8080/api/admin/v3.0/auth/providers/local-userpass/login failed, reason: connect ECONNREFUSED