Comment 2 for bug 1791394

addgroup: 组 docker 已经存在，且不是系统组。退出。

That error, if google translated it correctly, means:
Addgroup: The group docker already exists and is not a system group. drop out.

which makes it a duplicate of https://bugs.launchpad.net/ubuntu/+source/docker.io/+bug/1769911

Do you have a vpn, and have you ever aborted a docker installation before? Then this might be related as well: https://bugs.launchpad.net/ubuntu/+source/docker.io/+bug/1628053