Docker ps not showing anythin

I made my deployments using docker and database is running in the postgres container. Now, I need to push changes to the docker but docker ps is not showing anything. Context is set to default. I can’t restart the service because I fear data lose.

Have you tried if it makes a difference whether you prefix the command with sudo (=run as root) or without (=run as unprivileged user). Without of course only works if your user is in the docker group.