Problem with Samsung Galaxy S20+

So I got my new S20+ all set up and ready to go, except for one thing……custom ringtones. If I go to Settings —> sounds and vibrations —> ringtone—> little + in upper right hand corner, it gives me a message stating "to use this feature you need to allow permissions in settings. But when I go to Settings, it shows me Sound picker and under App Settings it has Permissions "no Permissions allowed". and I can't change it. any ideas on what to do????? thanks in advance for any help