0
Upgrade error
(lemmy.ml)
Found out just now what the problem was.
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.
Support / questions about Lemmy.