Activation server error - code E_ACT_NOT_READY

[jenniferm20118370]

I am trying to open an ebook I have already been able to read on Adobe Editions but whenever I try to open the book I get a message that reads "Activation server error - code E_ACT_NOT_READY" What  does this mean and how can I fix this?

[Nanaky]

Windows:

1. Close all applications.
2. Choose Start > Run.
3. In the Open text box, type regedit and then press Enter. The Registry Editor opens.
4. In the left pane of the Registry Editor, locate the following registry key: HKEY_CURRENT_USER\Software\Adobe\Adept
5. Select the Adept key.
6. Choose File > Export.
7. In the Export Registry File dialog box, select Selected Branch under Export Range. Enter a name and location for the backup registry key, and then click Save.
8. Right-click the Adept key and choose Delete.
9. In the Confirm Key Delete dialog, click OK.
10. Close the Registry Editor.
11. Open Adobe Digital Editions and reauthorize.

Macintosh:

1. quit Adobe Digital Editions.
2. Navigate to /Users//Library/Application Support/Adobe/Digital Editions and drag the activation.dat file to the trash.
   If you are using 10.7, see Access hidden library files | Mac OS 10.7 and later.
3. Open Adobe Digital Editions and reauthorize.