The error looks like Self-Hosting Deployment Questions with CENTOS - #2 by jeyraman which has been answered. The past posts are really helpful to me.
- if you want to customise and deploy your own version, you can folk it on Github and set up your own docker hub repo.
- not enough info for me to understand. I suppose you follow the docker stack lamp.yml on the instructions to make sure all docker services are working and use portainer which is really helpful on deployment debug.