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SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (`collector`.`catalog_compare_item`, CONSTRAINT `FK_CAT_CMP_ITEM_PRD_ID_CAT_PRD_ENTT_ENTT_ID` FOREIGN KEY (`product_id`) REFERENCES `catalog_product_entity` (`entity_id`) ON DELETE CASCADE ON U), query was: INSERT INTO `catalog_compare_item` (`visitor_id`, `customer_id`, `product_id`, `store_id`) VALUES (?, ?, ?, ?)
Trace: #0 /home/collector/lib/Varien/Db/Statement/Pdo/Mysql.php(110): Zend_Db_Statement_Pdo->_execute() #1 /home/collector/app/code/core/Zend/Db/Statement.php(291): Varien_Db_Statement_Pdo_Mysql->_execute() #2 /home/collector/lib/Zend/Db/Adapter/Abstract.php(480): Zend_Db_Statement->execute() #3 /home/collector/lib/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query() #4 /home/collector/lib/Varien/Db/Adapter/Pdo/Mysql.php(504): Zend_Db_Adapter_Pdo_Abstract->query() #5 /home/collector/lib/Zend/Db/Adapter/Abstract.php(576): Varien_Db_Adapter_Pdo_Mysql->query() #6 /home/collector/app/code/core/Mage/Core/Model/Resource/Db/Abstract.php(453): Zend_Db_Adapter_Abstract->insert() #7 /home/collector/app/code/core/Mage/Core/Model/Abstract.php(318): Mage_Core_Model_Resource_Db_Abstract->save() #8 /home/collector/app/code/core/Mage/Catalog/Model/Product/Compare/Item.php(110): Mage_Core_Model_Abstract->save() #9 /home/collector/app/code/core/Mage/Catalog/Model/Product/Compare/List.php(51): Mage_Catalog_Model_Product_Compare_Item->save() #10 /home/collector/app/code/core/Mage/Catalog/Model/Product/Compare/List.php(67): Mage_Catalog_Model_Product_Compare_List->addProduct() #11 /home/collector/app/code/core/Mage/Catalog/controllers/Product/CompareController.php(63): Mage_Catalog_Model_Product_Compare_List->addProducts() #12 /home/collector/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Catalog_Product_CompareController->indexAction() #13 /home/collector/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch() #14 /home/collector/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match() #15 /home/collector/app/code/core/Mage/Core/Model/App.php(365): Mage_Core_Controller_Varien_Front->dispatch() #16 /home/collector/app/Mage.php(686): Mage_Core_Model_App->run() #17 /home/collector/index.php(83): Mage::run() #18 {main}

Error log record number: 588821260546