error file : /shop/cartupdate.php 에러

insert yc4_cart set on_uid = '3295c76acbf4caaed33c36b1b5fc2cb1', it_id = '1316489985', it_opt1 = '싱글', it_opt2 = '선택안함(홑겹)', it_opt3 = '선택안함', it_opt4 = '선택안함(카드결제시)', it_opt5 = '', it_opt6 = '', ct_status = '쇼핑', ct_amount = '39000', ct_point = '0', ct_point_use = '0', ct_stock_use = '0', ct_qty = '1', ct_time = '2011-09-21 09:28:17', ct_ip = '121.137.206.219', ct_direct = '1', ct_memo = ''

1054 : Unknown column 'ct_memo' in 'field list'

error file : /shop/cartupdate.php
-------------------------------------------------------------------------------------
http://www.d-foryou.co.kr/shop/item.php?it_id=1316489985
에서구매하기누르면 이렇게 나옵니다.