My E-reader won't open my purchased textbook anymore? Wrong Cert?

Report · Mar 20, 2018

I have opened this previously and now it is saying my client certificate is invalid? I need access to this as soon as possible. I've tried redownloading it and that did not work. I paid for this online material and am very frustrated that it's now deciding not to work?? Adobe Digital Editions Bani Verma @adobe

Report · Mar 21, 2018

I have same problem. Digital Editions crash on fulfillment. Can't download .acsm files. I tried ADE 3, ADE 4.5.7 and even older versions but I can't open purchased books.

Please help!