I am another victim of the dreaded E_LIC_LICENSE_SIGN_ERROR. My ADE was working fine with (https://openlibrary.org/) Open Library until yesterday. Now I get this error when I try to return a book to the library or download a new book. I am running Windows 7, and ADE 3.0. I have tried the following actions as suggested in this forum:
1. I have created an exception for the Windows firewall for ADE.
2. I have uninstalled and reinstalled ADE.
3. I have rebooted my computer.
4. I upgraded my ADE 2 to ADE 3.0.
5. I have tried using ADE on a MacBook computer -- I get the same error message.
6. I have tried using Firefox, Internet Explorer, and chrome. – I get the same error message.
anyone have any other ideas?
absolutely the same problem