music player and notifications isn't showing after installing lollipo(galaxy s5)

So the problem is after installing Lollipop on My samsung Galaxy S5 my notifications went missing. My music player when active and screen is locked is missing. So maybe someone can help me get music player to lock screen without uing somesort of 3rd ap? And get my notifications? beause they dont even show on top bar if screen is locked like it did.