1054 - Unknown column 'p.products_id' in 'on clause'

select distinct p.products_id, p.products_image, p.products_tax_class_id, s.status as specstat, s.specials_new_products_price, p.products_price from products p left join specials s on p.products_id = s.products_id, products_to_categories p2c, categories c left join featured f on p.products_id = f.products_id where p.products_id = p2c.products_id and p2c.categories_id = c.categories_id and c.parent_id = 3 and p.products_status = '1' and f.status = '1' order by rand() DESC limit 5

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