This worked like a charm! Thanks so much for posting, friend! I tried to get Windows to search the web to update my sound card for me, but it said it was up to date.
For everyone else that ends up with this issue: Although the error messages were gone after, I had to screw around with it a little more to get it to work. For a minute the sound was coming from my TV (monitor) speakers, I don’t know exactly what I did but I just messed with the audio hardware settings in Premiere as well as the windows sound menu and eventually found a combination that worked.