bejo
Have you manually deleted the contents of the /var/lib/docker or /www/server/docker folder?
If you not, try to run these command to Initialize docker
#uninstall docker
yum remove docker-ce docker-ce-cli
#delete the docker floder
rm -rf /www/server/docker
#delete soft link
rm -rf /var/lib/docker
#install docker
yum install docker-ce docker-ce-cli
#startup docker
systemctl start docker
