Unknown column 'reduction_from' in 'field list'

[schel4ok]

After problems with some modules I switched debug mode on and see this message on the screen:

Unknown column 'reduction_from' in 'field list'

       SELECT p.*, pl.`description`, pl.`description_short`, pl.`link_rewrite`, pl.`meta_description`, pl.`meta_keywords`, pl.`meta_title`, pl.`name`, p.`ean13`,
           i.`id_image`, il.`legend`, t.`rate`, m.`name` AS manufacturer_name, DATEDIFF(p.`date_add`, DATE_SUB(NOW(), INTERVAL 5 DAY)) > 0 AS new, 
           (p.`price` * ((100 + (t.`rate`))/100) - IF((DATEDIFF(`reduction_from`, CURDATE()) <= 0 AND DATEDIFF(`reduction_to`, CURDATE()) >=0) OR `reduction_from` = `reduction_to`, IF(`reduction_price` > 0, `reduction_price`, (p.`price` * ((100 + (t.`rate`))/100) * `reduction_percent` / 100)),0)) AS orderprice 
       FROM `ps_product` p
       LEFT JOIN `ps_product_lang` pl ON (p.`id_product` = pl.`id_product` AND pl.`id_lang` = 6)
       LEFT JOIN `ps_image` i ON (i.`id_product` = p.`id_product` AND i.`cover` = 1)
       LEFT JOIN `ps_image_lang` il ON (i.`id_image` = il.`id_image` AND il.`id_lang` = 6)
       LEFT JOIN `ps_tax` t ON (t.`id_tax` = p.`id_tax`)
       LEFT JOIN `ps_manufacturer` m ON (m.`id_manufacturer` = p.`id_manufacturer`)
       WHERE p.`active` = 1
       AND p.`date_add` > DATE_SUB(NOW(), INTERVAL 5 DAY)
       AND p.`id_product` IN (
           SELECT cp.`id_product`
           FROM `ps_category_group` cg
           LEFT JOIN `ps_category_product` cp ON (cp.`id_category` = cg.`id_category`)
           WHERE cg.`id_group` = 1
       ) ORDER BY RAND() LIMIT 0, 4

Does anybody know what does it mean and how to fix it?

[schel4ok]

I found error root cause.
It goes from blocknewproductz (http://modulez.ru).
It looks nicer than blocknewproducts, but it seems that it's not 100% ready for production.