Regarding current problems with the container registry pushing and deleting from and to the container registry is not working, and we are working on fixing this. As a current alternative, we can offer our Harbor instance, which can be reached at https://hub.cc-asp.fraunhofer.de.
Due to urgent security maintenance, Fraunhofer GitLab CE, Mattermost, and Docker registry will be unavailable on May 15th '24, between 5 pm and 8 pm CET. Please log out during the maintenance, otherwise data loss may occur.