Docker image comes with the NGINX web server so you don’t need that separately. When you run the start script NGINX automatically gets started as part of that script.
In step 2, make sure you register docker registry with credentials you received from blockapps.
And check if there is HTTPD/apache process already running on your localhost then you will need to shut them all down.
Then try executing this:
//Stop all active containers
docker stop $(docker ps -a -q)
//Run script with ip address and it will start all the containers again