A Database Error Occurred

Error Number: 1054

Unknown column 'articles.url_' in 'where clause'

SELECT articles.*, articles.id_article as article_id, page_articles.online as article_online, page_articles.id_page FROM `page_articles` JOIN `articles` ON `articles`.`id_article` = `page_articles`.`id_article` WHERE `page_articles`.`id_page` IS NULL AND `page_articles`.`online` = 1 AND (`articles`.`date_posted` <= '2024-03-28' OR `articles`.`date_posted` = '0000-00-00' ) AND (`articles`.`date_off` > '2024-03-28' OR `articles`.`date_off` = '0000-00-00' ) AND (`articles`.`url_sr` = 'kolut-na-drsci-cp' OR `articles`.`url_` = 'kolut-na-drsci-cp') ORDER BY `page_articles`.`order_no` ASC

Filename: models/Article_model.php

Line Number: 1026