Can't open a file, error getting license

Report · Feb 13, 2017

I bought an e-book from https://www.casadellibro.com and tried to download it from my CasaDelLibro library, by clicking the button redirecting to

This downloads to my computer a short file named URLLink-2.acsm. When I try to open it with Adobe Digital Editions, I get an error:

Unable to download. Error getting License. License Server Communication Problem: E_ADEPT_NO_TOKEN

My computer is a iMac, macOS Sierra 10.12.3. Adobe Digital Editions is version 4.5. The computer is authorised with my Adobe Id.