1054 - Unknown column 's.customers_group_id' in 'where clause'
select count(*) as total from products p, products_description pd, specials s where p.products_status = '1' and s.products_id = p.products_id and p.products_id = pd.products_id and pd.language_id = '1' and s.status = '1' and s.customers_group_id = '0'
