I can't go live on Booking.com

It seems I have to choose a channel manager before being able to go live. I don't want a channel manager and I don't need one. It was very hard to publish and now it's taking hours to figure out what to do. It's not explained anywhere. It is very frustrating to spend so much time filling all you need to publish a property and then not being able to go live with it. I have 2 more published ones, and you just gave me a 10 for one of them. Please help me solve this as soon as possible. It's very hard to understand how everything has to be and there are no answers to my question.

Thanks from Uruguay