You need to edit your .htaccess file which can be found in /public_html/ folder
IF you dont find please create one!
The following forces any http request to be rewritten using https. For example, the following code forces a request to http://example.com to load https://example.com. It also forces directly linked resources (images, css, etc.) to use https:
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RewriteEngine On
RewriteCond %{HTTPS} !=on
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]
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If this isn't working for you, first check your line endings. Copy/paste from your web browser into a text editor may not work right, so after pasting into your text editor you should delete each line break and add it back in (line break = return key).
