item is not currently available in your country or region

For some reason songs that where available on my apple music are no longer available.

My country is set to United Stated but there is a lot of music in my library that's no longer available for me.

Am I missing something? These songs have been available to me in the past, that's why they are in my library.

only thing I've done differently is I got a new iPhone that i bought from the phone company.

How do I fix this?