How to Change Sidebar Avatar on Site?

I purchased a template and can’t figure out how to change the avatar image at the top of the page. Any help would be greatly appreciated.

Here’s the site: Shahab’s Portfolio

Here’s the image I’m trying to change:
Screen Shot 2023-12-06 at 10.35.07 AM

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

figured it out finally. thanks

Can you tell me how to do it