pastebin.com/4Zw0kdJE
At the time below, you removed the plugin (guessing from the web interface) and this removed the plugin settings and docker which removed your dockers. There is nothing we can do to prevent losing your containers when this happens.
Log started: 2018-11-11 19:14:23
Removing openmediavault-docker-gui (4.1) ...
Removing docker-ce (5:18.09.0~3-0~debian-stretch) ...