Error during unserialization

[urbancrew]

Anyone noticed the exception with message 'Error during unserialization'. It happens in magento 1.9.3.x when you go to magento system > configuration > design:
when you are there just change from default scope to a website and then you'll receive this message in var/log/exception .log:

2017-11-22T10:24:43+00:00 ERR (3): 
exception 'Exception' with message 'Error during unserialization' in lib/Unserialize/Parser.php:60
Stack trace:
#0 app/code/core/Mage/Core/Helper/UnserializeArray.php(44): Unserialize_Parser->unserialize(Object(Mage_Core_Model_Config_Element))
#1 app/code/core/Mage/Adminhtml/Model/System/Config/Backend/Serialized.php(37): Mage_Core_Helper_UnserializeArray->unserialize(Object(Mage_Core_Model_Config_Element))
#2 app/code/core/Mage/Core/Model/Config/Data.php(78): Mage_Adminhtml_Model_System_Config_Backend_Serialized->_afterLoad()
#3 app/code/core/Mage/Adminhtml/Block/System/Config/Form.php(334): Mage_Core_Model_Config_Data->afterLoad()
#4 app/code/core/Mage/Adminhtml/Block/System/Config/Form.php(229): Mage_Adminhtml_Block_System_Config_Form->initFields(Object(Varien_Data_Form_Element_Fieldset), Object(Mage_Core_Model_Config_Element), Object(Mage_Core_Model_Config_Element))
#5 app/code/core/Mage/Adminhtml/Block/System/Config/Form.php(164): Mage_Adminhtml_Block_System_Config_Form->_initGroup(Object(Varien_Data_Form), Object(Mage_Core_Model_Config_Element), Object(Mage_Core_Model_Config_Element))
#6 app/code/core/Mage/Adminhtml/Block/System/Config/Edit.php(92): Mage_Adminhtml_Block_System_Config_Form->initForm()
#7 app/code/core/Mage/Adminhtml/controllers/System/ConfigController.php(107): Mage_Adminhtml_Block_System_Config_Edit->initForm()
#8 app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Adminhtml_System_ConfigController->editAction()
#9 app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('edit')
#10 app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#11 app/code/core/Mage/Core/Model/App.php(365): Mage_Core_Controller_Varien_Front->dispatch()
#12 app/Mage.php(684): Mage_Core_Model_App->run(Array)
#13 index.php(83): Mage::run('my_website...', 'website')
#14 {main}

[tomekjordan]

Install Atwix patch for it

[urbancrew]

which one is that?

[tomekjordan]

https://github.com/Atwix/Atwix_Unserialize

[lfluvisotto]

@urbancrew What is your PHP version?

Here using PHP 5.6.32 is working normally.

[urbancrew]

our php version is 5.6.32. installing the Atwix extension helped.
Thanks!

[morrisstrangfeld]

This issue still exists. It is especially bad if it happens after login with quote item.
The password of the user is revealed in the exception which is especially bad.
It is described here:
https://www.atwix.com/magento/supee-7405-cart-merge-error-fix/

Exception: Error during unserialization in /var/www/html/lib/Unserialize/Parser.php:60 Stack trace: #0 /var/www/html/app/code/core/Mage/Core/Helper/UnserializeArray.php(44): Unserialize_Parser->unserialize('grouped') #1 /var/www/html/app/code/core/Mage/Sales/Model/Quote/Item.php(540): Mage_Core_Helper_UnserializeArray->unserialize('grouped') #2 /var/www/html/app/code/core/Mage/Sales/Model/Quote.php(1889): Mage_Sales_Model_Quote_Item->compare(Object(Mage_Sales_Model_Quote_Item)) #3 /var/www/html/app/code/core/Mage/Checkout/Model/Session.php(303): Mage_Sales_Model_Quote->merge(Object(Mage_Sales_Model_Quote)) #4 /var/www/html/app/code/core/Mage/Checkout/Model/Observer.php(44): Mage_Checkout_Model_Session->loadCustomerQuote() #5 /var/www/html/app/code/core/Mage/Core/Model/App.php(1410): Mage_Checkout_Model_Observer->loadCustomerQuote(Object(Varien_Event_Observer)) #6 /var/www/html/app/code/core/Mage/Core/Model/App.php(1389): Mage_Core_Model_App->_callObserverMethod(Object(Mage_Checkout_Model_Observer), 'loadCustomerQuo...', Object(Varien_Event_Observer)) #7 /var/www/html/app/Mage.php(494): Mage_Core_Model_App->dispatchEvent('customer_login', Array) #8 /var/www/html/app/code/core/Mage/Customer/Model/Session.php(262): Mage::dispatchEvent('customer_login', Array) #9 /var/www/html/app/code/core/Mage/Customer/Model/Session.php(247): Mage_Customer_Model_Session->setCustomerAsLoggedIn(Object(Mage_Customer_Model_Customer)) #10 /var/www/html/app/code/core/Mage/Customer/controllers/AccountController.php(159): Mage_Customer_Model_Session->login('XXXX', 'XXXXXX') // here the PW is revealed #11 /var/www/html/app/code/core/Mage/Core/Controller/Varien/Action.php(437): Mage_Customer_AccountController->loginPostAction() #12 /var/www/html/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(262): Mage_Core_Controller_Varien_Action->dispatch('loginPost') #13 /var/www/html/app/code/core/Mage/Core/Controller/Varien/Front.php(192): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http)) #14 /var/www/html/app/code/core/Mage/Core/Model/App.php(381): Mage_Core_Controller_Varien_Front->dispatch() #15 /var/www/html/app/Mage.php(729): Mage_Core_Model_App->run(Array) #16 /var/www/html/index.php(78): Mage::run('default', 'store') #17 {main}

I think it makes sense to fix that in openmage instead of relying on this atwix module which clearly no one knows about in the first place.