Stopping/removing the running container

[PPillau]

Whenever I want to stop the running container or even remove it entirely, I get an error response from the daemon saying I cannot stop the container. I am getting:

unknown error after kill: runc did not terminate successfully: container_linux.go:388: signaling init process caused "permission denied"

Anybody got an idea what to do about it? Am I starting the container wrongly?

[PPillau]

Fixed it myself. Was a general error not actually related to this docker image.
sudo aa-remove-unknown
as can be seen in this stackoverflow question.