Problems with using SSL

I enabled SSL on my server yesterday. I went to the admin configure file and changed define('HTTP_SERVER', 'http://joannes-digital-designs.com/shop'); to define('HTTP_SERVER', 'https://joannes-digital-designs.com/shop');

I go to the login page, but when I click Submit to get into my admin panel I get this error message:

This site can’t be reached

The webpage at https://joannes-digital-designs.com/...R27P/login.php might be temporarily down or it may have moved permanently to a new web address.
ERR_SSL_UNRECOGNIZED_NAME_ALERT

What am I doing wrong/not doing?

Joanne

contact hostgator as your SSL installation does not seem correct.

Thanks very much, I will do that.

I have the SSL working on my site now, and there hasn't been any further attacks so far - fingers crossed!! lol