Adobe Indesign Open PDF button requires serial number but I have Adobe CC subscription

Indesign Ver 19.5

Platform: MacOS Monterey 12.7.5

Full of frustration here from Adobe support chat as I keep getting the runaround.

I have Adobe Indesign open and navigate to File-Open pdf file.  A window pops up requiring Registration information.  Does anyone know how I bypass this as I have an Adobe CC subscription which does not use serial numbers and support on this is non existent.

The only thing that happens in support is that I get the message of being forwarded to another person when I mention this problem.  This happens for about an hour then support says that Im trying to open a protected pdf and then I get disconnected when I say to them I have not even selected a file to open yet but they keep insisting that Im opening a protected pdf then we go around in circles until I get disconnected.  I have tried to find a phone number, email or even just open a ticket with support but there are no longer any of these options so trying here.

Screenshot attached.