Hello thanks for letting me

Hello thanks for letting me join. I have been using Ableton for a couple of years. I installed 11 and I had my keyboard playing the virtual sounds and instruments the other day. I tried it last night but I’m getting no sounds through my headphones. When I press the keys I can see it light up on the interface but I get nothing in my headphones. I do get sounds playing the keyboard on the audio compartment. Any idea what’s wrong?

James Knights Facebook fb.me/breakinscienc3

James Knights Facebook facebook.com/breakinscienc3