Can't start minikube inside docker network [closed]

I'm trying to start minikube on ubuntu 18.04 inside nginx proxy manager docker network in order to setup some kubernetes services and manage the domain names and the proxy hosts in the nginx proxy manager platform.

so I have nginxproxymanager_default docker network and when I run minikube start --network=nginxproxymanager_default I get

Exiting due to GUEST_PROVISION: Failed to start host: can't create with that IP, address already in use

what might I been doing wrong?