An item that you should check is the server name for your SSL in your configure.php file, if you are using a 'shared' SSL it most probably will not be 'yoursite.com'. Verify the SSL site & path and edit accordingly.
Code:
* URLs for your site will be built via:
* HTTP_SERVER plus DIR_WS_ADMIN or
* HTTPS_SERVER plus DIR_WS_HTTPS_ADMIN or
* HTTP_SERVER plus DIR_WS_CATALOG or
* HTTPS_SERVER plus DIR_WS_HTTPS_CATALOG
* ...depending on your system configuration settings
*/
define('HTTP_SERVER', 'http://yoursite.com');
define('HTTPS_SERVER', 'https://yoursite.com');
define('HTTP_CATALOG_SERVER', 'http://yoursite.com');
define('HTTPS_CATALOG_SERVER', 'https://yoursite.com');
I am trying to change the "false" to "yes". But it gives me "fatal error or runtime error occured" message and doesn't save the changes.
What are you using to attempt this change? And maybe how are you trying to do this?
If you are attempting to use a file editor in like a cPanel location this could be a problem. Suggest that you use a FTP app and FTP the file to your PC, use notepad or an editor to make change > save and FTP back to your site.