我正在尝试使用Magento 1.4.1.1中的购物车规则应用优惠券代码，但它似乎不起作用。
我收到了“无法使用优惠券代码”。错误。 这是exception.log文件的例外：
2013-10-03T17:47:21+00:00 ERR (3):
exception 'Zend_Db_Statement_Exception' with message 'SQLSTATE[42S22]: Column not found: 1054 Unknown column 'coupon_code' in 'where clause'' in /home1/interkid/public_html/lib/Zend/Db/Statement/Pdo.php:234
Stack trace:
#0 /home1/interkid/public_html/lib/Zend/Db/Statement.php(300): Zend_Db_Statement_Pdo->_execute(Array)
#1 /home1/interkid/public_html/lib/Zend/Db/Adapter/Abstract.php(468): Zend_Db_Statement->execute(Array)
#2 /home1/interkid/public_html/lib/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('SELECT `main_ta...', Array)
#3 /home1/interkid/public_html/lib/Varien/Db/Adapter/Pdo/Mysql.php(333): Zend_Db_Adapter_Pdo_Abstract->query('SELECT `main_ta...', Array)
#4 /home1/interkid/public_html/lib/Zend/Db/Adapter/Abstract.php(706): Varien_Db_Adapter_Pdo_Mysql->query(Object(Varien_Db_Select), Array)
#5 /home1/interkid/public_html/lib/Varien/Data/Collection/Db.php(707): Zend_Db_Adapter_Abstract->fetchAll(Object(Varien_Db_Select), Array)
#6 /home1/interkid/public_html/lib/Varien/Data/Collection/Db.php(620): Varien_Data_Collection_Db->_fetchAll(Object(Varien_Db_Select))
#7 /home1/interkid/public_html/lib/Varien/Data/Collection/Db.php(590): Varien_Data_Collection_Db->getData()
#8 /home1/interkid/public_html/lib/Varien/Data/Collection.php(264): Varien_Data_Collection_Db->load()
#9 /home1/interkid/public_html/app/code/local/BTS/Checkout/Model/Observer.php(22): Varien_Data_Collection->getItems()
#10 /home1/interkid/public_html/app/code/core/Mage/Core/Model/App.php(1228): BTS_Checkout_Model_Observer->addShipping(Object(Varien_Event_Observer))
#11 /home1/interkid/public_html/app/code/core/Mage/Core/Model/App.php(1209): Mage_Core_Model_App->_callObserverMethod(Object(BTS_Checkout_Model_Observer), 'addShipping', Object(Varien_Event_Observer))
#12 /home1/interkid/public_html/app/Mage.php(416): Mage_Core_Model_App->dispatchEvent('sales_quote_sav...', Array)
#13 /home1/interkid/public_html/app/code/core/Mage/Core/Model/Abstract.php(379): Mage::dispatchEvent('sales_quote_sav...', Array)
#14 /home1/interkid/public_html/app/code/core/Mage/Sales/Model/Quote.php(188): Mage_Core_Model_Abstract->_beforeSave()
#15 /home1/interkid/public_html/app/code/core/Mage/Core/Model/Abstract.php(304): Mage_Sales_Model_Quote->_beforeSave()
#16 /home1/interkid/public_html/app/code/core/Mage/Checkout/controllers/CartController.php(368): Mage_Core_Model_Abstract->save()
#17 /home1/interkid/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Checkout_CartController->couponPostAction()
#18 /home1/interkid/public_html/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('couponPost')
#19 /home1/interkid/public_html/app/code/core/Mage/Core/Controller/Varien/Front.php(177): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#20 /home1/interkid/public_html/app/code/core/Mage/Core/Model/App.php(304): Mage_Core_Controller_Varien_Front->dispatch()
#21 /home1/interkid/public_html/app/Mage.php(596): Mage_Core_Model_App->run(Array)
#22 /home1/interkid/public_html/index.php(80): Mage::run('', 'store')
#23 {main}
有人可以帮我一把吗？
提前致谢！