Small update: 
It creates a html of that page (The error in the log is Error:  "Not Found"
(404) at link for each of them) but the picture is not shown (contains proper
layout but no picture). The folders
that contains the pictures
(https://cdn.ampproject.org/1/www.website.com/data/) are not even downloaded
at all though no error is shown in the log nor any reference to the domain.