The first few steps wok fine for me but then I get some errors. I am root on a fresh ubuntu 16. can someone help?

After ./run.sh install I am getting :

"Error response from daemon: No such image: someguy123/steem:latest
Installation completed. You may now configure or run the server"

After ./run.sh remote_wallet I am getting Unable to find image 'steem:latest' locally
docker: Error response from daemon: repository steem not found: does not exist or no pull access.