403. error on my macbook pro when i try to google

Are you using a VPN? I had the same issue with some websites but by cancelling the VPN the problem resolved itself. Good luck . . .

This is a web access error, not a Mac error message.

From the web:

What Is a 403 Forbidden Error?

The 403 Forbidden Error happens when the web page (or another resource) that you’re trying to open in your web browser is a resource that you’re not allowed to access. It’s called a 403 error because that’s the HTTP status code that the webserver uses to describe that kind of error.

You usually get this error for one of two reasons. The first is that the owners of the webserver have properly set up access permissions and that you’re really not allowed access to the resource. The second reason is that the owners of the webserver have improperly set up permissions and you’re getting denied access when you really shouldn’t be.