Hi jorged52027021,
Please provide the exact dot version of the software & OS installed at your system .Also check whether is there any update available for the software after going through "help > check for updates "
Follow this thread to reset the preferences for the Acrobat Software :- https://forums.adobe.com/thread/1595848
If you are on Windows OS, open Acrobat, navigate to Help menu & repair the installation.
Also make sure that :-
- C:\ProgramData\Adobe\Slstore should have full permissions .
Then use credentials on the Sign in Page which you will get after clicking on 'License the software' from the prompt which you will be receiving at your end.
Regards,
Yatharth