I got the same issue. But I tried everything with no luck:
- Removing Container. (No fix)
- Removing mounts and container. (No fix)
- Removing mounts, container and image (No fix)
It was working, but I needed to remove the container and the mounts from the first try because I fucked up the thunderbird user import. Thereafter, I got this error.
My setup, maybe related:
I'm using Cloudflare and nginx proxy manager to proxy and reverse proxy my docker containers.