iTunes Library

Hi, i have at least 7 days worth of music on my old macbook pro, i've recently bought a new macbook pro 16 inch and im trying to import my playlists, When i import my music, the playlists and songs appear in itunes on my laptop but im unable to play literally any of my songs, they're all greyed out including the 658 songs that i've purchased through itunes

also when i try and see my purchased songs, it doesn't show any of the songs that I've bought...please help