A Database Error Occurred

Error Number: 1064

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'AND `p_estado` = 1 ORDER BY `p_codigo` ASC LIMIT 4' at line 7

SELECT * FROM (`np_productos` p) LEFT JOIN `np_areas` a ON `p`.`p_areas` = `a`.`a_codigo` LEFT JOIN `np_categorias` c ON `p`.`p_categorias` = `c`.`c_codigo` LEFT JOIN `np_subcategorias` s ON `p`.`p_subcategorias` = `s`.`s_codigo` WHERE `p`.`p_categorias` = AND `p_estado` = 1 ORDER BY `p_codigo` ASC LIMIT 4

Filename: /home/telecompra/public_html/modules/productos/models/productos_model.php

Line Number: 79