After you delete it, click on the 'Docker' tab, click on the 'Add Container', then click on 'Select a Template'. You'll see your docker container template just as you set it up under '[User Templates]'. Choose the Plex docker container and it will be put back exactly as you originally set it up.
In the log, it doesn't look like the remote shares went off line. I suspect that Plex had some trouble with the remote shares and couldn't deal with it. Can you remove some stuff to provide more room?
You should review your container template and be sure the mappings are appropriate. I suspect you have an incorrect mapping and are filling the container with files causing the docker container to fill up.
Do this:
- Delete your Plex docker container.
- Delete and recreate your docker vdisk image.
- Re-install Plex.
When you reinstall Plex, post a screen shot of your mappings. You may have to click on 'Show More Settings' to see all of them.