why did my apple music disappear?

i had downloaded a link to get ios11 early before it officially came out and i decided i didn't like it because it was glitching my phone so i downgraded my phone using a macbook air so i am back with ios 10. but all my apple music is gone and i can't get it back i tried logging out of my icloud and back in and everything.

最後更新：2017-09-16 16:29:38