My earlier reported issue has been solved with Shirshanka's help. In the log of the front-end container the following was found "This application is already running (Or delete /datahub-frontend/play.pid file).". After stopping datahub the frontend image was removed from the system and a new copy was pulled. Datahub started again with the modified quickstart. One container was not started, but could then be started manually. All containers are now up and running!