Hi there rfelton17!
From what we understand, you are getting an error while using the Music app on your MacBook Pro. We understand how confusing this can be and we'll be glad to give you some tips that can help.
To start, we see you've already done some great troubleshooting. Does this error occur when performing a specific function in Music? For example, searching or music or streaming a broadcast?
Let's have you test the issue in safe mode. To enter safe mode, follow these steps: Start up your Mac in safe mode
Do you still receive the error message? If not, restart your Mac normally and check for login items that may be causing the issue. For steps, look here: Remove login items to resolve startup problems on your Mac
We hope this helps.
Cheers!