Thinking about upgrading and optimizing Magento? Think again if you have plenty of extensions installed and later on, you want to get rid of some of them, especially when they are payment methods.
I don’t know if it’s Magento’s fault or some extensions are poorly written, but believe me, some errors can drive you nuts when you don’t know where to start debugging.
If you have orders where customers used a certain payment gateway or method and you disable this payment method later, you are left without any possibility to view those orders in the backend anymore. Yeah, start learning some phpMyAdmin…
[adsense:336×280:6928840684]
If you take a look at the error logs in the /var/report folder and you see something like this, then you have a problem which can involve some database research.
a:5:{i:0;s:40:"Cannot retrieve payment method instance.";i:1;s:5262:"#0 /home/xxx/public_html/app/code/core/Mage/Payment/Model/Info.php(83): Mage::throwException('Cannot retrieve...')
#1 /home/xxx/public_html/app/code/core/Mage/Payment/Helper/Data.php(119): Mage_Payment_Model_Info->getMethodInstance()
#2 /home/xxx/public_html/app/code/core/Mage/Adminhtml/Block/Sales/Order/Payment.php(50): Mage_Payment_Helper_Data->getInfoBlock(Object(Mage_Sales_Model_Order_Payment))
#3 /home/xxx/public_html/app/code/core/Mage/Adminhtml/Block/Sales/Order/Payment.php(44): Mage_Adminhtml_Block_Sales_Order_Payment->setPayment(Object(Mage_Sales_Model_Order_Payment))
#4 /home/xxx/public_html/app/code/core/Mage/Core/Block/Abstract.php(862): Mage_Adminhtml_Block_Sales_Order_Payment->_beforeToHtml()
#5 /home/xxx/public_html/app/code/core/Mage/Core/Block/Abstract.php(582): Mage_Core_Block_Abstract->toHtml()
#6 /home/xxx/public_html/app/code/core/Mage/Core/Block/Abstract.php(526): Mage_Core_Block_Abstract->_getChildHtml('order_payment', true)
#7 /home/xxx/public_html/app/code/core/Mage/Adminhtml/Block/Sales/Order/View/Tab/Info.php(112): Mage_Core_Block_Abstract->getChildHtml('order_payment')
#8 /home/xxx/public_html/app/design/adminhtml/default/default/template/sales/order/view/tab/info.phtml(45): Mage_Adminhtml_Block_Sales_Order_View_Tab_Info->getPaymentHtml()
#9 /home/xxx/public_html/app/code/core/Mage/Core/Block/Template.php(241): include('/home/xxx/...')
#10 /home/xxx/public_html/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('adminhtml/defau...')
#11 /home/xxx/public_html/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#12 /home/xxx/public_html/app/code/core/Mage/Adminhtml/Block/Template.php(81): Mage_Core_Block_Template->_toHtml()
#13 /home/xxx/public_html/app/code/core/Mage/Core/Block/Abstract.php(863): Mage_Adminhtml_Block_Template->_toHtml()
#14 /home/xxx/public_html/app/code/core/Mage/Adminhtml/Block/Widget/Tabs.php(303): Mage_Core_Block_Abstract->toHtml()
#15 /home/xxx/public_html/app/design/adminhtml/default/default/template/widget/tabs.phtml(38): Mage_Adminhtml_Block_Widget_Tabs->getTabContent(Object(Mage_Adminhtml_Block_Sales_Order_View_Tab_Info))
#16 /home/xxx/public_html/app/code/core/Mage/Core/Block/Template.php(241): include('/home/xxx/...')
#17 /home/xxx/public_html/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('adminhtml/defau...')
#18 /home/xxx/public_html/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#19 /home/xxx/public_html/app/code/core/Mage/Adminhtml/Block/Template.php(81): Mage_Core_Block_Template->_toHtml()
#20 /home/xxx/public_html/app/code/core/Mage/Core/Block/Abstract.php(863): Mage_Adminhtml_Block_Template->_toHtml()
#21 /home/xxx/public_html/app/code/core/Mage/Core/Block/Text/List.php(43): Mage_Core_Block_Abstract->toHtml()
#22 /home/xxx/public_html/app/code/core/Mage/Core/Block/Abstract.php(863): Mage_Core_Block_Text_List->_toHtml()
#23 /home/xxx/public_html/app/code/core/Mage/Core/Block/Abstract.php(582): Mage_Core_Block_Abstract->toHtml()
#24 /home/xxx/public_html/app/code/core/Mage/Core/Block/Abstract.php(526): Mage_Core_Block_Abstract->_getChildHtml('left', true)
#25 /home/xxx/public_html/app/design/adminhtml/default/default/template/page.phtml(58): Mage_Core_Block_Abstract->getChildHtml('left')
#26 /home/xxx/public_html/app/code/core/Mage/Core/Block/Template.php(241): include('/home/xxx/...')
#27 /home/xxx/public_html/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('adminhtml/defau...')
#28 /home/xxx/public_html/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#29 /home/xxx/public_html/app/code/core/Mage/Adminhtml/Block/Template.php(81): Mage_Core_Block_Template->_toHtml()
#30 /home/xxx/public_html/app/code/core/Mage/Core/Block/Abstract.php(863): Mage_Adminhtml_Block_Template->_toHtml()
#31 /home/xxx/public_html/app/code/core/Mage/Core/Model/Layout.php(529): Mage_Core_Block_Abstract->toHtml()
#32 /home/xxx/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(391): Mage_Core_Model_Layout->getOutput()
#33 /home/xxx/public_html/app/code/core/Mage/Adminhtml/controllers/Sales/OrderController.php(119): Mage_Core_Controller_Varien_Action->renderLayout()
#34 /home/xxx/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(420): Mage_Adminhtml_Sales_OrderController->viewAction()
#35 /home/xxx/public_html/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(250): Mage_Core_Controller_Varien_Action->dispatch('view')
#36 /home/xxx/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))
#37 /home/xxx/public_html/app/code/core/Mage/Core/Model/App.php(349): Mage_Core_Controller_Varien_Front->dispatch()
#38 /home/xxx/public_html/app/Mage.php(640): Mage_Core_Model_App->run(Array)
#39 /home/xxx/public_html/index.php(92): Mage::run('default', 'store')
#40 {main}";s:3:"url";s:50:"/index.php/vanzari/sales_order/view/order_id/3108/";s:11:"script_name";s:10:"/index.php";s:4:"skin";s:5:"admin";}
Now, the next step is to go to phpMyAdmin, open database table sales_flat_quote_payment and look at method records to see what payment methods have been used. Now that you know the internal name (eg. cashondelivery), you know what to reactivate or reinstall.
Hopefully this will fix your nightmare!
[adsense:336×280:5172905888]
However, if my method didn’t work for you, try to post a comment, maybe I can help.
