我浏览了许多论坛，但找不到解决我遇到的错误的方法。
当用户结帐并在结帐时选择注册时，他们将结束该过程并弹出错误消息“需要客户电子邮件”。
这是例外：
2012-08-23T14:35:06+00:00 ERR (3):
exception 'Mage_Customer_Exception' with message 'Customer email is required' in /home/psc/public_html/app/Mage.php:579
Stack trace:
#0 /home/psc/public_html/app/code/core/Mage/Customer/Model/Resource/Customer.php(76): Mage::exception('Mage_Customer', 'Customer email ...')
#1 /home/psc/public_html/app/code/core/Mage/Eav/Model/Entity/Abstract.php(1122): Mage_Customer_Model_Resource_Customer->_beforeSave(Object(Mage_Customer_Model_Customer))
#2 /home/psc/public_html/app/code/core/Mage/Core/Model/Abstract.php(318): Mage_Eav_Model_Entity_Abstract->save(Object(Mage_Customer_Model_Customer))
#3 /home/psc/public_html/app/code/core/Mage/Core/Model/Resource/Transaction.php(151): Mage_Core_Model_Abstract->save()
#4 /home/psc/public_html/app/code/core/Mage/Sales/Model/Service/Quote.php(189): Mage_Core_Model_Resource_Transaction->save()
#5 /home/psc/public_html/app/code/core/Mage/Sales/Model/Service/Quote.php(249): Mage_Sales_Model_Service_Quote->submitOrder()
#6 /home/psc/public_html/app/code/core/Mage/Checkout/Model/Type/Onepage.php(774): Mage_Sales_Model_Service_Quote->submitAll()
#7 /home/psc/public_html/app/code/core/Mage/Checkout/controllers/OnepageController.php(511): Mage_Checkout_Model_Type_Onepage->saveOrder()
#8 /home/psc/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(419): Mage_Checkout_OnepageController->saveOrderAction()
#9 /home/psc/public_html/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(250): Mage_Core_Controller_Varien_Action->dispatch('saveOrder')
#10 /home/psc/public_html/app/code/core/Mage/Core/Controller/Varien/Front.php(176): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#11 /home/psc/public_html/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#12 /home/psc/public_html/app/Mage.php(683): Mage_Core_Model_App->run(Array)
#13 /home/psc/public_html/index.php(90): Mage::run('', 'store')
#14 {main}