Add to shopping cart has quit working

[dlaery]

I have Ver 1.3.8.a
I have made a few changes in the admin in sideboxes, removing the right column.
I did that last weekend. I have noticed today that I can't add anything to my shopping cart when logged in.
This is my website.
www.hooksolutions.com
It has been up since Nov 2009. I have taken several orders.
I have one Item that is in my cart, but I think I added it before today. I don't think I have changed anything to cause this.
Any help on where to look would be appreciated

[stevesh]

If you search the forums for "your shopping cart is empty" (including the quotes), you'll see several threads detailing possible causes for that problem, including possible server configuration changes. Here's one:

http://www.zen-cart.com/forum/showthread.php?t=113844

[dlaery]

Thanks, stevesh.
I had done some searching and done some more. The thing I forgot to mention might be the problem. My site would not work properly using the ssl and had my hosting company fix the problem. They changed something in the htaccess file and when they did that, nothing would work. It would show a misdirected security certificate. then they changed the configure file where it says

define('HTTP_SERVER',  'http://hooksolutions.com');
  define('HTTPS_SERVER', 'https://www.hooksolutions.com');

The www was missing in the https_server, that fixed the problem of not being able to view the site without the security message.
I have sent anther request to see if they can fix the problem.
Do you think this is where the problme is? It sure looks like it to me.
Thanks,