Thank you for your reply, peytonkelvin,
and for letting us know.
Sorry I'm no expert ... and do not know what the error code signifies.
If you saw a reason given for the error code, it may point to the solution.
Wondering if you have any third-party (non-Apple) apps
(like unnecessary virus checkers, content blockers etc) that may be interfering with downloads,
You could try quitting the music app, and re-opening it.
You could also try IMPORTING the music to your Library again,
closely following Apple's method for the source of the music:
Choose import settings in Music on Mac – Apple Support
Import songs from CDs into Music on Mac – Apple Support
Import songs from the internet to Music on Mac – Apple Support
Import music from a computer to Music on Mac – Apple Support
Import media using Home Sharing in Music on Mac – Apple Support
All the best :-)