I am writing this to help others: the federation was active in that instance but it was also marked as a private instance. This gave no problems in using it until the update (probably because it is restarted and re-run Docker).
I removed the federation from the config file leaving only the private instance and it restarted immediately.
Upgrade error
Hello, I am trying to update from 0.16.3 to 0.16.5 with Ansible....