Can't erase authorization (Mac)

[kimw37162720]

Bought an ebook but can not open URLLink.ascm and keep getting the notification: License server communication problem: E_AUTH_BAD_DEVICE_KEY_OR_PKCS12

The retailer advised to erase authorization in Adobe Digital Editions. But each time I try, i get the notification that at the moment it is impossible to do this, please try again later.

I've tried time and again. Even restarting Mac as well as ADE.

Please help?

[Nanaky]

Windows:

    Close all applications.

    Choose Start > Run.

    In the Open text box, type regedit and then press Enter. The Registry Editor opens.

    In the left pane of the Registry Editor, locate the following registry key: HKEY_CURRENT_USER\Software\Adobe\Adept

    Select the Adept key.

    Choose File > Export.

    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.

    Right-click the Adept key and choose Delete.

    In the Confirm Key Delete dialog, click OK.

    Close the Registry Editor.

    Open Adobe Digital Editions and reauthorize.

Macintosh:

    quit Adobe Digital Editions.

    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 https://helpx.adobe.com/x-productkb/global/access-hidden-user-library-files.html

    Open Adobe Digital Editions and reauthorize.