force https

Backup your .htaccess file.

In the .htaccess  file add this to the top:

# Always use https for secure connections
# Replace 'www.example.com' with your domain name
# (as it appears on your SSL certificate)
RewriteEngine On
RewriteCond %{SERVER_PORT} 80
RewriteRule ^(.*)$ https://www.example.com/$1 [R=301,L]

Important! Replace www.example.com with your own domain name.

That  should do it (worked for me)