Problems with Apple music

Hello, I've changed my credit card, so my apple music asked me for changing the paying information in my account. Which I did, but, unfortunately, when I started my apple music app it just deleted all my music. But i have all my music in the iTunes application in my personal computer. I tried to restart my iphone and also deleted the apple music app and re-installed it but it is still no music in there exept these which I've bought through the itunes. :( Do I have any way how I can fix it or there is no solution and i will have to add all songs again?