MacBook Pro preparing for resell

I was preparing Macbook Pro for resell and logged out with Icloud. I erased disk and started to reinstall OS, when I saw an error- folder sign with question mark, I used a combination from support command+R. It started to reopen and asked the last used Aplle ID on this device. I entered mine. And again macOS recovery appeared. Now I’m unable to do reinstallation if OS because it show the error that it is connected to find my, but it is not in my list. How to manage it?