If you are receiving the Adobe Digital Editions error “Unable to download. Error getting License. License Server Communication Problem: E_ADEPT_NO_TOKEN” when downloading an ebook from Ebook Central, please contact Ebook Technical Support to report the error. Provide Technical Support with the Ebook Central URL for the ebook, the title of the ebook, and a screen shot of the error message. 

Other Adobe Digital Editions errors might be resolved by deauthorizing and reauthorizing Adobe Digital Editions