On April 11 between 4:15pm and 4:31pm CEST our connection to quay.io was down. All Docker images stored there were inaccessible. That caused failures in running some components. If you encountered an application error during that period, this outage was likely the culprit.
Unfortunately status.quay.io remains silent about this outage.
We are sorry for this inconvenience and to mitigate similar issues in the future, we will move all used Docker images from public repositories (DockerHub and Quay.io) to our private repository in AWS ECR.