I am running 1.3.8a, and I installed the FedEx shipping module. I did some test shopping on my store, and when I add an item to the cart, I get:
1054 Unknown column 'p.products_dim_type' in 'field list'
in:
[select p.products_id, p.master_categories_id, p.products_status, pd.products_name, p.products_model, p.products_image, p.products_price, p.products_weight, p.products_dim_type, p.products_weight_type, p.products_length, p.products_width, p.products_height, p.products_ready_to_ship, p.products_tax_class_id, p.products_quantity_order_min, p.products_quantity_order_units, p.product_is_free, p.products_priced_by_attribute, p.products_discount_type, p.products_discount_type_from from products p, products_description pd where p.products_id = '1' and pd.products_id = p.products_id and pd.language_id = '1']