How to resolve the "You do not have access to application management" message?

I have installed Adobe Creative Cloud, but the "Apps" tab isn't showing anything. It only displays the message: "You do not have access to app management." Below that, it says: "IT administrator permission may be required to enable app management."
My account is a personal one—not a business or student account. I started the Lightroom Classic free trial yesterday; I’m set to be charged for a full year's subscription, yet I still haven't been able to install the software because of this issue.
All the Adobe apps—both the ones I’ve subscribed to and those available for purchase—should be appearing there.

