Magento products showing up store front but not under categories

Question

We have Magento 1.8 and everything was working fine until few days ago when we noticed products are showing up fine on the main page but for some reason do not show on any of the categories.

You can click on the product and see the details. You can search for any particular product and once again find it but nothing under categories. We have done all the usual things recommended on most forums we have searched through including reindexing and flushing the cache.

Please help - the page is maxkoldonline.com incase you would like to see the problem we are having.

NOTE: we have upgraded from 1.7 to 1.8 although we have not checked if the problem pre or post dates the upgrade.

Many thanks for your time.

Answer 1

Did you check to make sure the products are assigned to their respective categories? By going into a product, go to the categories tab and make sure it has a category assigned. There are many things that could cause this. But this is where I would start.

Answer 2

Try by enabling error display from index.php and see if any error comes on category page.

ini_set('display_errors', 1);