Trying to use an old Mac book so I added it to my wify but I got this message.Don't know what it means. How old is your MacBook?
Looks like it is trying to boot to internet recovery. The error code tells you that it is finding some problem with the network.
When I get a similar boot error, I usuall try to boot to ethernet (plug in a USB ethernet adapter. It's why I keep one in my box of necessary adapters and dongles. Comes in handy!)