A Database Error Occurred

Error Number: 1054

Unknown column 'i.is_discount' in 'where clause'

SELECT i.*, ii.image, b.name AS brand, c.name AS category, c.alias AS c_alias, ic.color_id FROM items AS i INNER JOIN item_colors AS ic ON (ic.item_id = i.id) INNER JOIN item_sizes AS iss ON (iss.item_id = i.id AND iss.color_id = ic.color_id) INNER JOIN item_images AS ii ON (ii.color_id = ic.color_id AND ii.item_id = ic.item_id) INNER JOIN categories AS c ON (c.id = i.c_id) INNER JOIN brands AS b ON (b.id = i.brand_id) LEFT JOIN items_popular AS ip ON (ip.item_id = ic.item_id AND ip.color_id = ic.color_id) WHERE i.is_active = 1 AND iss.count > 0 AND i.is_discount = 1 GROUP BY ic.id ORDER BY i.views DESC

Filename: /var/www/afashion/data/www/afashion.by/models/database_model.php

Line Number: 583