Admin Category Page Blank - Help Please

[Andy_Acute]

Hi All - My 'Manage Categories' page isn't displaying any category details.

The page seems to part load and then goes blank. Please see image.

I have no idea why this has happened, but I am concerned as I need to do quite a bit of work in the categories.

Code from the system.log:

2017-01-09T13:00:04+00:00 ERR (3): Warning: strpos(): Empty needle in /home/icouk/public_html/lib/Zend/Controller/Request/Http.php on line 508
2017-01-09T13:00:04+00:00 ERR (3): Warning: strpos(): Empty needle in /home/icouk/public_html/lib/Zend/Controller/Request/Http.php on line 514
2017-01-09T13:00:37+00:00 DEBUG (7): HEADERS ALREADY SENT: <pre>[0] /home/icouk/public_html/app/code/core/Mage/Core/Controller/Response/Http.php:52
[1] /home/icouk/public_html/lib/Zend/Controller/Response/Abstract.php:768
[2] /home/icouk/public_html/app/code/core/Mage/Core/Controller/Response/Http.php:84
[3] /home/icouk/public_html/app/code/core/Mage/Core/Controller/Varien/Front.php:184
[4] /home/icouk/public_html/app/code/core/Mage/Core/Model/App.php:365
[5] /home/icouk/public_html/app/Mage.php:684
[6] /home/icouk/public_html/index.php:107
</pre>
2017-01-09T13:14:04+00:00 ERR (3): Recoverable Error: Object of class Ebizmarts_SagePaySuite_Model_Sagepaysuite_Transaction could not be converted to string in /home/icouk/public_html/lib/Varien/Db/Adapter/Pdo/Mysql.php on line 3074
2017-01-09T13:15:05+00:00 ERR (3): Warning: strpos(): Empty needle in /home/icouk/public_html/lib/Zend/Controller/Request/Http.php on line 508
2017-01-09T13:15:05+00:00 ERR (3): Warning: strpos(): Empty needle in /home/icouk/public_html/lib/Zend/Controller/Request/Http.php on line 514
2017-01-09T13:30:07+00:00 ERR (3): Warning: strpos(): Empty needle in /home/icouk/public_html/lib/Zend/Controller/Request/Http.php on line 508
2017-01-09T13:30:07+00:00 ERR (3): Warning: strpos(): Empty needle in /home/icouk/public_html/lib/Zend/Controller/Request/Http.php on line 514
2017-01-09T13:34:20+00:00 ERR (3): Recoverable Error: Object of class Mage_Customer_Model_Customer could not be converted to string in /home/icouk/public_html/lib/Varien/Db/Adapter/Pdo/Mysql.php on line 3074
2017-01-09T13:53:39+00:00 DEBUG (7): HEADERS ALREADY SENT: <pre>[0] /home/icouk/public_html/app/code/core/Mage/Core/Controller/Response/Http.php:52
[1] /home/icouk/public_html/lib/Zend/Controller/Response/Abstract.php:768
[2] /home/icouk/public_html/app/code/core/Mage/Core/Controller/Response/Http.php:84
[3] /home/icouk/public_html/app/code/core/Mage/Core/Controller/Varien/Front.php:184
[4] /home/icouk/public_html/app/code/core/Mage/Core/Model/App.php:365
[5] /home/icouk/public_html/app/Mage.php:684
[6] /home/icouk/public_html/index.php:107
</pre>
2017-01-09T13:54:07+00:00 DEBUG (7): HEADERS ALREADY SENT: <pre>[0] /home/icouk/public_html/app/code/core/Mage/Core/Controller/Response/Http.php:52
[1] /home/icouk/public_html/lib/Zend/Controller/Response/Abstract.php:768
[2] /home/icouk/public_html/app/code/core/Mage/Core/Controller/Response/Http.php:84
[3] /home/icouk/public_html/app/code/core/Mage/Core/Controller/Varien/Front.php:184
[4] /home/icouk/public_html/app/code/core/Mage/Core/Model/App.php:365
[5] /home/icouk/public_html/app/Mage.php:684
[6] /home/icouk/public_html/index.php:107
</pre>
2017-01-09T14:31:25+00:00 DEBUG (7): HEADERS ALREADY SENT: <pre>[0] /home/icouk/public_html/app/code/core/Mage/Core/Controller/Response/Http.php:52
[1] /home/icouk/public_html/lib/Zend/Controller/Response/Abstract.php:768
[2] /home/icouk/public_html/app/code/core/Mage/Core/Controller/Response/Http.php:84
[3] /home/icouk/public_html/app/code/core/Mage/Core/Controller/Varien/Front.php:184
[4] /home/icouk/public_html/app/code/core/Mage/Core/Model/App.php:365
[5] /home/icouk/public_html/app/Mage.php:684
[6] /home/icouk/public_html/index.php:107
</pre>
2017-01-09T15:58:10+00:00 ERR (3): Recoverable Error: Object of class Mage_Customer_Model_Customer could not be converted to string in /home/icouk/public_html/lib/Varien/Db/Adapter/Pdo/Mysql.php on line 3074
2017-01-09T15:58:10+00:00 ERR (3): Recoverable Error: Object of class Ebizmarts_SagePaySuite_Model_Sagepaysuite_Transaction could not be converted to string in /home/icouk/public_html/lib/Varien/Db/Adapter/Pdo/Mysql.php on line 3074
2017-01-09T16:00:39+00:00 ERR (3): Recoverable Error: Object of class Ebizmarts_SagePaySuite_Model_Sagepaysuite_Transaction could not be converted to string in /home/icouk/public_html/lib/Varien/Db/Adapter/Pdo/Mysql.php on line 3074

Code from the exception.log:

2017-01-09T12:54:49+00:00 ERR (3): 
exception 'Mage_Core_Exception' with message 'Invalid block type: ' in /home/icouk/public_html/app/Mage.php:595
Stack trace:
#0 /home/icouk/public_html/app/code/core/Mage/Core/Model/Layout.php(495): Mage::throwException('Invalid block t...')
#1 /home/icouk/public_html/app/code/core/Mage/Core/Model/Layout.php(437): Mage_Core_Model_Layout->_getBlockInstance('', Array)
#2 /home/icouk/public_html/app/code/core/Mage/Core/Model/Layout.php(472): Mage_Core_Model_Layout->createBlock('', 'checkout.cart')
#3 /home/icouk/public_html/app/code/core/Mage/Core/Model/Layout.php(239): Mage_Core_Model_Layout->addBlock('', 'checkout.cart')
#4 /home/icouk/public_html/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 /home/icouk/public_html/app/code/core/Mage/Core/Model/Layout.php(210): Mage_Core_Model_Layout->generateBlocks(Object(Mage_Core_Model_Layout_Element))
#6 /home/icouk/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(344): Mage_Core_Model_Layout->generateBlocks()
#7 /home/icouk/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(269): Mage_Core_Controller_Varien_Action->generateLayoutBlocks()
#8 /home/icouk/public_html/app/code/core/Mage/Checkout/controllers/CartController.php(194): Mage_Core_Controller_Varien_Action->loadLayout()
#9 /home/icouk/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Checkout_CartController->indexAction()
#10 /home/icouk/public_html/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('index')
#11 /home/icouk/public_html/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#12 /home/icouk/public_html/app/code/core/Mage/Core/Model/App.php(365): Mage_Core_Controller_Varien_Front->dispatch()
#13 /home/icouk/public_html/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#14 /home/icouk/public_html/index.php(107): Mage::run()
#15 {main}
2017-01-09T12:56:17+00:00 ERR (3): 
exception 'Mage_Core_Model_Session_Exception' in /home/icouk/public_html/app/code/core/Mage/Core/Model/Session/Abstract/Varien.php:416
Stack trace:
#0 /home/icouk/public_html/app/code/core/Mage/Core/Model/Session/Abstract/Varien.php(231): Mage_Core_Model_Session_Abstract_Varien->validate()
#1 /home/icouk/public_html/app/code/core/Mage/Core/Model/Session/Abstract.php(84): Mage_Core_Model_Session_Abstract_Varien->init('checkout', NULL)
#2 /home/icouk/public_html/app/code/core/Mage/Checkout/Model/Session.php(65): Mage_Core_Model_Session_Abstract->init('checkout')
#3 /home/icouk/public_html/app/code/core/Mage/Core/Model/Config.php(1357): Mage_Checkout_Model_Session->__construct(Array)
#4 /home/icouk/public_html/app/Mage.php(463): Mage_Core_Model_Config->getModelInstance('checkout/sessio...', Array)
#5 /home/icouk/public_html/app/Mage.php(477): Mage::getModel('checkout/sessio...', Array)
#6 /home/icouk/public_html/app/code/core/Mage/Checkout/Model/Type/Onepage.php(74): Mage::getSingleton('checkout/sessio...')
#7 /home/icouk/public_html/app/code/core/Mage/Core/Model/Config.php(1357): Mage_Checkout_Model_Type_Onepage->__construct(Array)
#8 /home/icouk/public_html/app/Mage.php(463): Mage_Core_Model_Config->getModelInstance('checkout/type_o...', Array)
#9 /home/icouk/public_html/app/Mage.php(477): Mage::getModel('checkout/type_o...', Array)
#10 /home/icouk/public_html/app/code/local/Ebizmarts/SagePaySuite/Model/Api/Payment.php(410): Mage::getSingleton('checkout/type_o...')
#11 /home/icouk/public_html/app/code/local/Ebizmarts/SagePaySuite/Model/Api/Payment.php(427): Ebizmarts_SagePaySuite_Model_Api_Payment->_getQuote()
#12 /home/icouk/public_html/app/code/local/Ebizmarts/SagePaySuite/Model/Sagepaysuite/Transaction.php(192): Ebizmarts_SagePaySuite_Model_Api_Payment->getQuote()
#13 /home/icouk/public_html/app/code/core/Mage/Core/Model/Abstract.php(316): Ebizmarts_SagePaySuite_Model_Sagepaysuite_Transaction->_beforeSave()
#14 /home/icouk/public_html/app/code/local/Ebizmarts/SagePaySuite/Model/Sagepaysuite/Transaction.php(128): Mage_Core_Model_Abstract->save()
#15 /home/icouk/public_html/app/code/local/Ebizmarts/SagePaySuite/Block/Adminhtml/Sales/Order/Grid/Renderer/State.php(26): Ebizmarts_SagePaySuite_Model_Sagepaysuite_Transaction->updateFromApi()
#16 /home/icouk/public_html/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Column.php(128): Ebizmarts_SagePaysuite_Block_Adminhtml_Sales_Order_Grid_Renderer_State->render(Object(Mage_Sales_Model_Order))
#17 /home/icouk/public_html/app/design/adminhtml/default/default/template/widget/grid.phtml(161): Mage_Adminhtml_Block_Widget_Grid_Column->getRowField(Object(Mage_Sales_Model_Order))
#18 /home/icouk/public_html/app/code/core/Mage/Core/Block/Template.php(241): include('/home/icouk/pub...')
#19 /home/icouk/public_html/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('adminhtml/defau...')
#20 /home/icouk/public_html/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#21 /home/icouk/public_html/app/code/core/Mage/Adminhtml/Block/Template.php(81): Mage_Core_Block_Template->_toHtml()
#22 /home/icouk/public_html/app/code/core/Mage/Core/Block/Abstract.php(923): Mage_Adminhtml_Block_Template->_toHtml()
#23 /home/icouk/public_html/app/code/core/Mage/Core/Model/Layout.php(555): Mage_Core_Block_Abstract->toHtml()
#24 /home/icouk/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(390): Mage_Core_Model_Layout->getOutput()
#25 /home/icouk/public_html/app/code/core/Mage/Adminhtml/controllers/Sales/OrderController.php(104): Mage_Core_Controller_Varien_Action->renderLayout()
#26 /home/icouk/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Adminhtml_Sales_OrderController->gridAction()
#27 /home/icouk/public_html/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('grid')
#28 /home/icouk/public_html/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#29 /home/icouk/public_html/app/code/core/Mage/Core/Model/App.php(365): Mage_Core_Controller_Varien_Front->dispatch()
#30 /home/icouk/public_html/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#31 /home/icouk/public_html/index.php(107): Mage::run()
#32 {main}

I hope someone can help!

Thank you

Andy

[LGLA]

Did you try disabling Ebizmarts Sagepay to see if that is where your error is coming from? 

[Andy_Acute]

Hi stargirlnine

Thank you for your response.

I will try that today when the site is less busy.

In the meantime, I looked at the web console in firefox and when i loaded the 'manage categories' page, the console reported some jquery errors (please see attached screenshot). I have no idea if this is connected with the problem.

Thank again for responding and i will try your suggestion later today.

Andy

[Andy_Acute]

UPDATE: I found the problem.

It was indeed a third party module. Not sure how or why it suddenly conflicted, but i will look into that.

Thank you

Andy