Stop author details being shown online

Hello I am new on here so dont know if I am posting in the right place.
I had a website built for me using avada and theme fusion, the problem I have I see in Bing and Google search results my author/username showing.
Is there anyone who could tell me how to stop this please.
Many thanks for any help

Can you provide a screenshot of what your seeing? May help

It’s one of the basic WordPress feature

Type in your blog name and type /?author=1

Ohhhhh, I got the (clearly wrong) impression it was the theme author details showing up lol, which had me intrigued tbh