Add Photos is greyed out Lightroom 4.0

{Moderator note: Edited the thread title}

{Moderator note: Edited the thread title}
I'm an enterprise user to Creative Cloud.
I've already tried to reinstall the application but it's still the same.
Thanks for the update. We've discovered instances of a Corporate license where the issue turned out to be the Corporate Admin controlsFor now, please contact the administrator to your Adobe Creative Cloud license and ask them to enable services on your account that affects adding images to Lightroom Desktop.
~Akash
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