to your Parallels account via the GUI, try these commands instead:
Sign out:
% prlsrvctl web-portal signout
The user has signed out successfully.
Sign in:
% prlsrvctl web-portal signin "mail@example.com"
Please enter password:
The user has signed in successfully.
Activate license (registered license beforehand at my.parallels.com/home → "Register a License Key"):
% prlsrvctl install-license -k XXXXXX-XXXXXX-XXXXXX-XXXXXX-XXXXXX
The license has been successfully installed.
/mac | Nov 24, 2022