Are you logging in using the exact same psn account? Can you show proof that it’s active on your ps4 but not on ps5?
Mine worked fine when I moved over to PS5. Have you removed the old PS4 version? if not remove Have you completed a full cache clear? Clearing your console’s cache fixes lots of problems. Doing this a least once a month on consoles is recommended. Close console Unplug from the wall [u][b]Leave unplugged for a full 5 mins this is very important[/b].[/u] Plug back in and restart.