there, it will say that the Application Updater or Application Manager app itself needs to be updated.on your Mac, click on the Creative Cloud logo (that looks like a cloud in the form of the number 8 that has fallen over) in the top bar of the screen, on the right side.If your CC-subscription is active, proceed to the second part of the solution : If it’s not listed, use the Redemption Code that you got after purchasing your Creative Cloud renewal to (re)activate your CC-subscription. then, check at “subscriptions and products” if your Creative Cloud subscription is listed.then, login again using your AdobeID and password.The first part of the solution is to make sure that your Creative Cloud subscription is active :

Quitting the Adobe Application Manager app and trying again give the same result, and even restarting my Mac with all apps refreshed gives the same error… the Creative Cloud window just hangs on “Please wait for a moment”…

I just purchased a new Student&Teacher license code for Adobe Creative Cloud, and I even though I can see on the Adobe-website that the new subscription is active on my AdobeID, I cannot use any Creative Cloud application on my Mac, because when I startup Photoshop CC (or Illustrator CC or InDesign CC), the Adobe Aplication Manager app is automatically run, the Creative Cloud window opens, it flashes and then “Please wait for a moment” is displayed and the clock keeps spinning… and spinning… and spinning…

Adobe application manager cc 2015