Error OsCommerce

[Plus]

. Hola, tengo dos portales de Oscommerce, y resulta que ahora en uno me sale el siguiente error:

054 - Unknown column 'p.products_id' in 'on clause'

select count(p.products_id) as total from products_description pd, products p left join manufacturers m on p.manufacturers_id = m.manufacturers_id, products_to_categories p2c left join specials s on p.products_id = s.products_id where p.products_status = '1' and p.products_id = p2c.products_id and pd.products_id = p2c.products_id and pd.language_id = '3' and p2c.categories_id = '19'

. El campo products_id está en la tabla de MySQL. ¿Que puede estar ocurriendo?