New Centos 7 install local endpoint down

I’m trying to setup a VM for docker on my ESXi 6.7 homelab. I built a basic Centos 7 VM, installed docker via “yum install docker”, and then followed the guide on the Portainer website to install Portainer. I am able to access the web interface on port 9000 to create a new user and select the local endpoint. My problem is the local endpoint shows as down and I can’t figure out how to start it.

I am not an experienced Linus user by any stretch but all the guides I have found make this seem so easy so I’m not sure if I’m missing something or there is something wrong.

I just want a basic single server setup to try out Docker versions of some home media servers like Plex and Emby. My usage may expand once I learn more but I just can’t get past this initial setup.