Safari Can't Find the Server.

Safari can't open the page "safari//index.htm" because Safari can't find the server "Safari".

The subject title and the above note is all I get when ever I try to open Safari. My internet connection is fine as as Google and everything else functions properly. I have just reinstalled macOS including all current updates and this did not make a difference at all. All articles I find seem to be about opening specific web pages but nothing helpful about the above issue.

Can any body please help me as I have run out of ideas please...?

I am not tech savvy as I just use a computer as a tool to do things for me.

Cheers.

GC.