Te-a luat google ca duplicat, avand valabile ambele versiuni ale site-ului. Modifica in htaccess, ca toate prefixurile (http, https, www, non-www) sa duca in aceeasi parte
<IfModule mod_rewrite.c>
Options +FollowSymLinks
RewriteEngine On
//Redirect http to https
RewriteCond %{SERVER_PORT} 80
RewriteCond %{HTTP_HOST} ^(www\.)?example\.com
RewriteRule ^(.*)$ https://www.example.com/$1 [R,L]
//Redirect non-www to www
RewriteCond %{HTTP_HOST} ^example.com [NC]
RewriteRule ^(.*)$ https://www.example.com/$1 [L,R=301]
</IfModule>
sau varianta simpla,
RewriteEngine On
RewriteCond %{HTTPS} !=on
RewriteRule ^.*$ https://%{SERVER_NAME}%{REQUEST_URI} [R,L]