I have a site which has been working perfectly fine for about 6 months. Suddenly it stopped and I have no clue why. In IE the links to the zen cart categories don't work at all. In FF, I can get to the categories but I can't login to the admin (it just hangs) and when I try to add to my cart it tells me that my cart is empty. I have been in touch with the webhost and they say that nothing has changed on their end. On the programming end, I have not touched the site in months either.
The site is located at http://4ugifts.co.il/
If anyone has any ideas as to what may have gone wrong - I would really really appreciate.