I assume you are getting a blank screen on the creative cloud window
You may refer-:New Creative Cloud App unusable: it's blank!
and Also try :-Black Screen at Sign-in | Creative Cloud Desktop app
Hope This Helps !!!
If you have trouble launching the Creative Cloud Desktop application and the application shows a spinning progress wheel or a blank white screen (or otherwise does not open), try the solutions below in order. If a solution works, you do not need to try the next solution.