RequestError: getaddrinfo ENOTFOUND learning.oreilly.com

[camilaagw]

While trying to download the book with reference: 9781785888632
I get the following error:

an error occurred while trying to download all the image assets (err: RequestError: getaddrinfo ENOTFOUND learning.oreilly.com)

These are the logs:

[safari-downloader] starting application...
[safari-downloader] the user "camilaandrea.gonzalezwilliamson@pmi.com" was successfully authorized...
[safari-downloader] downloaded meta files...
[safari-downloader] downloaded table of content files...
[safari-downloader] downloaded chapter files...
[safari-downloader] downloaded stylesheet files...
[safari-downloader] an error occurred while trying to download all the image assets (err: RequestError: getaddrinfo ENOTFOUND learning.oreilly.com)