MacBook Air safari can’t find server

Hello there marrah44,

Thanks for posting here on the Apple Support Communities! This is a place where other Apple users can submit questions or respond to others to help lend a hand. Let's take a closer look as we do our best to provide some additional insight.

It looks like Safari is not loading up web pages for you there. Other than just Safari, do other apps that use the internet work at all? If not, be sure to check your network connections: Solve internet connection problems on Mac

If it's just Safari that is not able to connect, check out these steps: If Safari on Mac doesn't open a webpage or isn’t working as expected

We hope this helps get you pointed in the right direction.

Take care.