Please follow the steps in:
CC Spinning Blue Wheel under 'Home' or 'Apps'?
Creative Cloud Desktop App stuck on blue spinning wheel after update.
There were a few posts earlier today about the same spinning wheel issue and this was the solution for them
http://helpx.adobe.com/creative-cloud/kb/unknown-server-error-launching-cc.html
Other related threads:
New Creative Cloud Desktop not working
I cannot get contact with the cloud
Hope it helps you.
Regards
Rajshree