Cant get apple music songs on my macbook library nothing shows.

Basically on my pc and iPhone i have been using apple music and adding songs to my library and it has all been working seemlessly until now. my macbook was loading the music in my library but now it doesn't show any of it not even my music from iCloud so i can't listen to apple music songs i have added to my music i have to go look up the songs. any ideas on fixes?