Magento attribute value disappears automatically

[bhagyashree11]

Hi,

We have created one attribute in the magento admin panel and have lot many options for it i.e. around 800-900 for the attribute. When ever I open the attribute and add an option to it then some of the options get disappear automatically and also randomly even when I add it again and save and then open after sometime any other random option disappears. I searched google but unable to understand why this happens. Please let me know what the issue is.

[KentChr_DK]

Hi @bhagyashree11,

Check system.log or exception.log file from consol. It will help you identify the real issue. Try to solve it or paste it here, then we will help you if possible.

[bhagyashree11]

EXception.log is as follows:

2016-12-26T06:19:48+00:00 ERR (3): 
exception 'Mage_Core_Exception' with message 'Invalid block type: Magentothem_Relatedslider_Block_Page_Html_Head' in /var/www/html/onestop/app/Mage.php:595
Stack trace:
#0 /var/www/html/onestop/app/code/core/Mage/Core/Model/Layout.php(495): Mage::throwException('Invalid block t...')
#1 /var/www/html/onestop/app/code/core/Mage/Core/Model/Layout.php(437): Mage_Core_Model_Layout->_getBlockInstance('relatedslider/p...', Array)
#2 /var/www/html/onestop/app/code/core/Mage/Core/Model/Layout.php(472): Mage_Core_Model_Layout->createBlock('relatedslider/p...', 'magentothem_rel...')
#3 /var/www/html/onestop/app/code/core/Mage/Core/Model/Layout.php(239): Mage_Core_Model_Layout->addBlock('relatedslider/p...', 'magentothem_rel...')
#4 /var/www/html/onestop/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 /var/www/html/onestop/app/code/core/Mage/Core/Model/Layout.php(210): Mage_Core_Model_Layout->generateBlocks(Object(Mage_Core_Model_Layout_Element))
#6 /var/www/html/onestop/app/code/core/Mage/Core/Controller/Varien/Action.php(344): Mage_Core_Model_Layout->generateBlocks()
#7 /var/www/html/onestop/app/code/core/Mage/Cms/Helper/Page.php(113): Mage_Core_Controller_Varien_Action->generateLayoutBlocks()
#8 /var/www/html/onestop/app/code/core/Mage/Cms/Helper/Page.php(52): Mage_Cms_Helper_Page->_renderPage(Object(Mage_Cms_IndexController), 'x984_home')
#9 /var/www/html/onestop/app/code/core/Mage/Cms/controllers/IndexController.php(45): Mage_Cms_Helper_Page->renderPage(Object(Mage_Cms_IndexController), 'x984_home')
#10 /var/www/html/onestop/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Cms_IndexController->indexAction()
#11 /var/www/html/onestop/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('index')
#12 /var/www/html/onestop/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#13 /var/www/html/onestop/app/code/core/Mage/Core/Model/App.php(365): Mage_Core_Controller_Varien_Front->dispatch()
#14 /var/www/html/onestop/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#15 /var/www/html/onestop/index.php(86): Mage::run('', 'store')
#16 {main}
2016-12-26T06:28:16+00:00 ERR (3): 
exception 'Mage_Core_Exception' with message 'Invalid block type: Magentothem_Relatedslider_Block_Page_Html_Head' in /var/www/html/onestop/app/Mage.php:595
Stack trace:
#0 /var/www/html/onestop/app/code/core/Mage/Core/Model/Layout.php(495): Mage::throwException('Invalid block t...')
#1 /var/www/html/onestop/app/code/core/Mage/Core/Model/Layout.php(437): Mage_Core_Model_Layout->_getBlockInstance('relatedslider/p...', Array)
#2 /var/www/html/onestop/app/code/core/Mage/Core/Model/Layout.php(472): Mage_Core_Model_Layout->createBlock('relatedslider/p...', 'magentothem_rel...')
#3 /var/www/html/onestop/app/code/core/Mage/Core/Model/Layout.php(239): Mage_Core_Model_Layout->addBlock('relatedslider/p...', 'magentothem_rel...')
#4 /var/www/html/onestop/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 /var/www/html/onestop/app/code/core/Mage/Core/Model/Layout.php(210): Mage_Core_Model_Layout->generateBlocks(Object(Mage_Core_Model_Layout_Element))
#6 /var/www/html/onestop/app/code/core/Mage/Core/Controller/Varien/Action.php(344): Mage_Core_Model_Layout->generateBlocks()
#7 /var/www/html/onestop/app/code/core/Mage/Cms/Helper/Page.php(113): Mage_Core_Controller_Varien_Action->generateLayoutBlocks()
#8 /var/www/html/onestop/app/code/core/Mage/Cms/Helper/Page.php(52): Mage_Cms_Helper_Page->_renderPage(Object(Mage_Cms_IndexController), 'no-route')
#9 /var/www/html/onestop/app/code/core/Mage/Cms/controllers/IndexController.php(75): Mage_Cms_Helper_Page->renderPage(Object(Mage_Cms_IndexController), 'no-route')
#10 /var/www/html/onestop/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Cms_IndexController->noRouteAction()
#11 /var/www/html/onestop/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('noRoute')
#12 /var/www/html/onestop/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#13 /var/www/html/onestop/app/code/core/Mage/Core/Model/App.php(365): Mage_Core_Controller_Varien_Front->dispatch()
#14 /var/www/html/onestop/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#15 /var/www/html/onestop/index.php(86): Mage::run('', 'store')
#16 {main}
2016-12-26T06:28:23+00:00 ERR (3): 
exception 'Mage_Core_Exception' with message 'Invalid block type: Magentothem_Relatedslider_Block_Page_Html_Head' in /var/www/html/onestop/app/Mage.php:595
Stack trace:
#0 /var/www/html/onestop/app/code/core/Mage/Core/Model/Layout.php(495): Mage::throwException('Invalid block t...')
#1 /var/www/html/onestop/app/code/core/Mage/Core/Model/Layout.php(437): Mage_Core_Model_Layout->_getBlockInstance('relatedslider/p...', Array)
#2 /var/www/html/onestop/app/code/core/Mage/Core/Model/Layout.php(472): Mage_Core_Model_Layout->createBlock('relatedslider/p...', 'magentothem_rel...')
#3 /var/www/html/onestop/app/code/core/Mage/Core/Model/Layout.php(239): Mage_Core_Model_Layout->addBlock('relatedslider/p...', 'magentothem_rel...')
#4 /var/www/html/onestop/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 /var/www/html/onestop/app/code/core/Mage/Core/Model/Layout.php(210): Mage_Core_Model_Layout->generateBlocks(Object(Mage_Core_Model_Layout_Element))
#6 /var/www/html/onestop/app/code/core/Mage/Core/Controller/Varien/Action.php(344): Mage_Core_Model_Layout->generateBlocks()
#7 /var/www/html/onestop/app/code/core/Mage/Cms/Helper/Page.php(113): Mage_Core_Controller_Varien_Action->generateLayoutBlocks()
#8 /var/www/html/onestop/app/code/core/Mage/Cms/Helper/Page.php(52): Mage_Cms_Helper_Page->_renderPage(Object(Mage_Cms_IndexController), 'no-route')
#9 /var/www/html/onestop/app/code/core/Mage/Cms/controllers/IndexController.php(75): Mage_Cms_Helper_Page->renderPage(Object(Mage_Cms_IndexController), 'no-route')
#10 /var/www/html/onestop/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Cms_IndexController->noRouteAction()
#11 /var/www/html/onestop/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('noRoute')
#12 /var/www/html/onestop/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#13 /var/www/html/onestop/app/code/core/Mage/Core/Model/App.php(365): Mage_Core_Controller_Varien_Front->dispatch()
#14 /var/www/html/onestop/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#15 /var/www/html/onestop/index.php(86): Mage::run('', 'store')
#16 {main}

[Pronto]

Apparently one of your layout files tries to load Magentothem_Relatedslider extension blocks. And fails. Usually it happens when an extension is removed, but modified layout / template files still try use it.