How can I play Forza Horizon online, can you

I don't know how to play Forza Horizon online. It always happens when I play online: This function is blocked by the parental controls on Xbox Live. I play on PC. I would be very happy if you could help me further.

So you first have to go live in xbox then go to general changes and then enter youth restriction on the search line then you can deactivate that

How can I go live on X box?

You have to enter a device, e.g. A handheld or laptop, then x box live and then log in