1054 - Unknown column 's.customers_group_id' in 'where clause'

select count(p.products_model) as total from products_description pd, products p left join manufacturers m on p.manufacturers_id = m.manufacturers_id left join specials s on p.products_id = s.products_id where p.products_status = '1' and p.products_id = pd.products_id and pd.language_id = '1' and s.status = '1' and s.customers_group_id = '0'

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