I have a private github server, on it I have an organization "myorg". I pushed a docker container "runner" on it.
If I go on the Packages section of my organization (webpage), I can see my container, which say:

docker pull mygithub/myorg/actions/runner:latest

But if I try to pull from my machine, I get the following error:

Error response from daemon: unknown: {"errors":[{"code":"MANIFEST_UNKNOWN","message":"Docker image reference runner:sha256:xxx not found under repo \"myorg\""}]}

And I can not figure out why. Any suggestion?