Hello, I accidentally deleted the Macintosh HD as I was trying to erase the data on it because I just bought it from someone with their files still on it. Doing this I accidentally deleted the whole thing rather than just the files on it. I tried going into disk utility and creating a new file or whatever it’s called from the internal disk but then when I go to install the latest macOS, it says the recovery server cannot be contacted. Can someone tell me how to fix this?