index.html file

This is my site: https://www.smartowlservices.com
When I click the owl image on top, it goes to index.html, how can I modify this link to go to my ‘home’ page?

The theme is Finale: https://themesmarts.com/themes/finale-elegant-wordpress-theme/
I’ve contacted the theme’s developer for assistance, but received no response so far.

Thanks!