Error getting License. License Server Communication Problem: E_ADEPT_NO_TOKEN

[#1]

I downloaded two .acsm files about 2 weeks ago and they opened fine on Digital Editions, but now it keeps showing this error:

Error getting License. License Server Communication Problem:

E_ADEPT_NO_TOKEN

[#2]

I downloaded two .acsm files about 2 weeks ago and they opened fine on Digital Editions, but now it keeps showing this error:

Error getting License. License Server Communication Problem:

E_ADEPT_NO_TOKEN

[#3]

I've been having the same issues with Adobe. I used to use ADE absolutely fine - but now I get the same except it says "E_ADEPT_UNKNOWN" with every file - on iPhone, Mac and Windows.

I've tried de-authorizing and re-authorizing, un-installing the programs and re-installing, deleting the registry keys, etc. I can't help but feel this is a major problem on Adobe's end.

[#4]

Is there no solution for this problem? I did the online chat and all they said was that they no longer provide chat support and directed me to this support group.