No music sound with Apple Carplay

All of a sudden, sound from Apple music and Spotify stop working with Apple CarPlay. I am able to get sound when I am connected via Bluetooth. It was working well before. I tried turning off my phone and the car and restarting; connecting with Bluetooth first and plugging my phone to the usb cable; and turning the airplane mode on. I also tried removing and adding the car in the Apple CarPlay.