(solved) Anyone know what this error means?

1054 Unknown column 'a.category_name' in 'order clause' SQL=SELECT a.ordering, b.* FROM ere_hikashop_product_category AS a LEFT JOIN ere_hikashop_product AS b ON a.product_id=b.product_id WHERE a.category_id=33 AND b.product_type = 'main' ORDER BY a.category_name asc LIMIT 20, 20

Now I can't log into my products.

Update: After I scratched my head for an hour trying to figure things out... I cleared my cache and things started working again. One of those days.

Don't know how to delete this post.