Help With setting up refurbished Mac

MAC GENIUS’ NEEDED

Bought a refurbished Mac off amazon. Went to turn on and was able to put my info in. After running what seemed to be the last start up screen a flashing ‘question mark’ folder appeared.

Looking into that I tried the ‘command r’ method and went to reinstall the OS. However there was no disk for me to choose to start it up.

I then went into the utility disk panel and found 1 disk that is all greyed out (tried to erase). Still no luck.

I feel like I’m running out of options and if anyone could shed some clarity that would be amazing. Thanks!