發生了一個資料庫錯誤

Error Number: 1054

Unknown column 'category' in 'where clause'

SELECT COUNT(*) AS `numrows` FROM (`gw_u_m_shop_list`) WHERE `release_in` = 1 AND `category` = '14' AND `lang` = 'zh-tw'

Filename: /home/yuanmei/public_html/controllers/shop_list.php

Line Number: 48