instagram facebook

Why can't I promote posts on the instagram without linking my account to Facebook? How do I fix this error? I want to promote posts without linking my account to Facebook. Please help me.

I want to promote posts on the instagram, but without a connection to Facebook. I have a company account on instagram and when I want to start promoting posts, I am always prompted to link Instagram to FanPage on Facebook. If I don't confirm it and I don't connect Instagram with Facebok, it...