Is my install corrupted because of running out of space?

Configuration
1

I run HA inside Hass.io in Docker. The server has run 24/7 without any problems, but a few days ago i got a error when i clicked on the supervisor panel or any of the addons in the UI:

Unable to load the panel source: /api/hassio/app/entrypoint.js

I restarted the host and hoped it would fix it. Nope, still the same error. I look at the logs and see this:

500 Server Error: Internal Server Error ("readlink /var/lib/docker/overlay2/l: invalid argument").

I check the HA CLI:

Post http://supervisor/core/check: dial tcp 172.30.32.2:80: connect: no route to host

I google both errors and try out every command and fix possible that i could find, nothing works and i only get to read that i have to reinstall or go to and old backup. My last backup is from May of 2020, which means i lose alot of new things that i setup between now and then. I did nothing for this to happen, it just suddenly happened and i read the same. Let me know if any info is needed to fix the issue.

2

I got exactly the same thing yesterday (Supervisor wont start - error with docker image). I got the same error as you in the logs, but further up got another error, referring to a docker image not being found, despite it being there. I deleted the image (since it was unused) and after a restart everything started working again. I’m highly dubious this is what fixed it, but it seemed to work for me.

3

So i fixed this problem by using Portainer to delete any unused images, one of which being my old HA image, deleting it removed the issue because the supervisor fixed it by redownloading the correct image and fixing the issue.