Home page redirect

Hi, I have a problem where my homepage is redirected to another version of my website, creating a complete duplicate. (I use WordPress)
I also see both versions when I use (site:mywebsite.com) on google.

https://ternaga.com/ is redirected to https://www.ternaga.com/

I do prefer to redirect all to the www versions as it's the one that is on all my social media + already started to rank a bit.

How can I please fix the issue?

Thanks for the help.

Put this into your htaccess. Obviously, replace "website" with your domain.

# Redirect non-www to www
RewriteEngine On
RewriteCond %{HTTP_HOST} ^website\.com [NC]
RewriteRule ^(.*)$ https://www.website.com/$1 [L,R=301]