Nobody can help you without exact system information and other technical details. As a start, refer to this:
Hello , Creative Cloud is active yes! I was using the trial version , the past 30 days did purchase the monthly plan and from there I can not use revelation mode ( where you edit the photos ) .
I have not received any kind of validation code .
My purchase was made by credit card yesterday, will I have to wait ?
Sorry I do not speak English , I'm using google translator
Have you tried to activate the paid subscription, you need to sign out & sign back in of the CC desktop app.
I think that the issue that you are facing in related to CC, it is a technical issue of light room, moving to Light room forum.
Fala Fabio, beleza?
Cara, como você resolveu o problema? Estou com o mesmo!
tambem estou com este problema alguem sabe como solucionar?