我正在Ubuntu平台（Ubuntu 18.04.1 LTS）上的Docker上运行网站。由于某种原因，在系统升级后，我的docker无法启动。它显示以下错误： [graphdriver]先前的存储驱动程序aufs失败：不支持该驱动程序
在这里或其他地方，我尝试了很多推荐的事情。例如： -Editing specific line in text file in python -删除/重新安装了docker-ce
重新安装Docker-ce之后，我收到以下消息
update-alternatives: using /usr/bin/dockerd-ce to provide /usr/bin/dockerd (dockerd) in auto mode
Job for docker.service failed because the control process exited with error code .
See "systemctl status docker.service" and "journalctl -xe" for details.
运行journalctl-xe时，我会看到以下错误消息
Dec 21 03:34:56 ultraball2100 dockerd[2984]: time="2018-12-21T03:34:56.004229379-05:00" level=info msg="systemd-resolved is running, so using resolvconf: /run/systemd/resolve
Dec 21 03:34:56 ultraball2100 dockerd[2984]: time="2018-12-21T03:34:56.008851952-05:00" level=warning msg="failed to rename /var/lib/docker/tmp for background deletion: renam
Dec 21 03:34:56 ultraball2100 dockerd[2984]: time="2018-12-21T03:34:56.010988609-05:00" level=info msg="parsed scheme: \"unix\"" module=grpc
Dec 21 03:34:56 ultraball2100 dockerd[2984]: time="2018-12-21T03:34:56.011180824-05:00" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grp
Dec 21 03:34:56 ultraball2100 dockerd[2984]: time="2018-12-21T03:34:56.011774151-05:00" level=info msg="parsed scheme: \"unix\"" module=grpc
Dec 21 03:34:56 ultraball2100 dockerd[2984]: time="2018-12-21T03:34:56.011936628-05:00" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grp
Dec 21 03:34:56 ultraball2100 dockerd[2984]: time="2018-12-21T03:34:56.014725816-05:00" level=error msg="AUFS was not found in /proc/filesystems" storage-driver=aufs
Dec 21 03:34:56 ultraball2100 dockerd[2984]: time="2018-12-21T03:34:56.015058973-05:00" level=error msg="[graphdriver] prior storage driver aufs failed: driver not supported"
Dec 21 03:34:56 ultraball2100 dockerd[2984]: Error starting daemon: error initializing graphdriver: driver not supported
Dec 21 03:34:56 ultraball2100 systemd[1]: docker.service: Main process exited, code=exited, status=1/FAILURE
Dec 21 03:34:56 ultraball2100 systemd[1]: docker.service: Failed with result 'exit-code'.
Dec 21 03:34:56 ultraball2100 systemd[1]: Failed to start Docker Application Container Engine.
-- Subject: Unit docker.service has failed
我无法清除所有内容，因为我担心会丢失网站数据。
Docker应该启动，我应该启动我的网站并运行它。