error on log file

Question

Please can anyone tell me how to remove these errors from exception.log file ? My frontend is working fine but, I don't know why these errors are occurring when I click on checkout

2016-04-14T10:49:35+00:00 ERR (3): 
exception 'Mage_Core_Exception' with message 'Invalid block type: Mage_Tco_Block_Iframe' in C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\Mage.php:594
Stack trace:
#0 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Model\Layout.php(495): Mage::throwException('Invalid block t...')
#1 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Model\Layout.php(437): Mage_Core_Model_Layout->_getBlockInstance('tco/iframe', Array)
#2 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Model\Layout.php(472): Mage_Core_Model_Layout->createBlock('tco/iframe', 'tco.iframe')
#3 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Model\Layout.php(239): Mage_Core_Model_Layout->addBlock('tco/iframe', 'tco.iframe')
#4 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Model\Layout.php(205): Mage_Core_Model_Layout->_generateBlock(Object(Mage_Core_Model_Layout_Element), Object(Mage_Core_Model_Layout_Element))
#5 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Model\Layout.php(206): Mage_Core_Model_Layout->generateBlocks(Object(Mage_Core_Model_Layout_Element))
#6 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Model\Layout.php(210): Mage_Core_Model_Layout->generateBlocks(Object(Mage_Core_Model_Layout_Element))
#7 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Controller\Varien\Action.php(344): Mage_Core_Model_Layout->generateBlocks()
#8 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Controller\Varien\Action.php(269): Mage_Core_Controller_Varien_Action->generateLayoutBlocks()
#9 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\local\Magestore\Onestepcheckout\controllers\IndexController.php(63): Mage_Core_Controller_Varien_Action->loadLayout()
#10 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Controller\Varien\Action.php(418): Magestore_Onestepcheckout_IndexController->indexAction()
#11 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Controller\Varien\Router\Standard.php(250): Mage_Core_Controller_Varien_Action->dispatch('index')
#12 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Controller\Varien\Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#13 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Model\App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#14 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\Mage.php(683): Mage_Core_Model_App->run(Array)
#15 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\index.php(97): Mage::run('', 'store')
#16 {main}
2016-04-14T10:49:35+00:00 ERR (3): 
exception 'Mage_Core_Exception' with message 'Invalid block type: Mage_Wirecard_Checkout_Page_Block_Seamless_Script' in C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\Mage.php:594
Stack trace:
#0 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Model\Layout.php(495): Mage::throwException('Invalid block t...')
#1 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Model\Layout.php(437): Mage_Core_Model_Layout->_getBlockInstance('wirecard_checko...', Array)
#2 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Model\Layout.php(472): Mage_Core_Model_Layout->createBlock('wirecard_checko...', 'wirecard_checko...')
#3 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Model\Layout.php(239): Mage_Core_Model_Layout->addBlock('wirecard_checko...', 'wirecard_checko...')
#4 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Model\Layout.php(205): Mage_Core_Model_Layout->_generateBlock(Object(Mage_Core_Model_Layout_Element), Object(Mage_Core_Model_Layout_Element))
#5 C:\Inetpub\vhosts\hotdeals4less.com\httpdocs\app\code\core\Mage\Core\Model\Layout.php(210): Mage_Core_Model_Layout->generateBlocks(Object(Mage_Core_Model_Layout_Element))

Answer 1

Search for tco/iframe in your project layout files and comment out or delete them.

Here a solution for the static blocks was added from the backend:

Try to find this block in content of the cms pages and remove it (in the admin panel).

Or try to find it directly in mysql:

SELECT * FROM `cms_page` WHERE `content` LIKE '%tco/iframe%' OR `layout_update_xml` LIKE '%tco/iframe%' OR `custom_layout_update_xml` LIKE '%tco/iframe%'

Answer 2

Two modules are causing the problem:

• The first error seems to be related to this extension: https://github.com/craigchristenson/magento-2checkout (you probably deleted it but you keep the related code in your layout files, look for tco.iframe in your layout files and remove the reference if you deleted the module)
• The second error is related to this extension: https://github.com/netzkollektiv/wirecard-checkout-magento and it's exactly the same problem as the first one, extension got deleted by related code is still present in the layout files, look for wirecard_checkout_page and it's the same process as above.