Item (Mage_Catalog_Model_Product) with the same id "8422" already exist

#0 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Eav/Model/Entity/Collection/Abstract.php(265): Varien_Data_Collection->addItem(Object(Mage_Catalog_Model_Product))
#1 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Eav/Model/Entity/Collection/Abstract.php(1055): Mage_Eav_Model_Entity_Collection_Abstract->addItem(Object(Mage_Catalog_Model_Product))
#2 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Eav/Model/Entity/Collection/Abstract.php(869): Mage_Eav_Model_Entity_Collection_Abstract->_loadEntities(false, false)
#3 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Review/Model/Observer.php(78): Mage_Eav_Model_Entity_Collection_Abstract->load()
#4 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Model/App.php(1303): Mage_Review_Model_Observer->catalogBlockProductCollectionBeforeToHtml(Object(Varien_Event_Observer))
#5 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Model/App.php(1278): Mage_Core_Model_App->_callObserverMethod(Object(Mage_Review_Model_Observer), 'catalogBlockPro...', Object(Varien_Event_Observer))
#6 /chroot/home/babywitc/babywit.com/html/app/Mage.php(416): Mage_Core_Model_App->dispatchEvent('catalog_block_p...', Array)
#7 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Catalog/Block/Product/List.php(163): Mage::dispatchEvent('catalog_block_p...', Array)
#8 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Block/Abstract.php(862): Mage_Catalog_Block_Product_List->_beforeToHtml()
#9 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Block/Text/List.php(43): Mage_Core_Block_Abstract->toHtml()
#10 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Block/Abstract.php(863): Mage_Core_Block_Text_List->_toHtml()
#11 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Block/Abstract.php(582): Mage_Core_Block_Abstract->toHtml()
#12 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Block/Abstract.php(526): Mage_Core_Block_Abstract->_getChildHtml('content', true)
#13 /chroot/home/babywitc/babywit.com/html/app/design/frontend/default/babywit/template/page/2columns-right.phtml(56): Mage_Core_Block_Abstract->getChildHtml('content')
#14 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Block/Template.php(244): include('/chroot/home/ba...')
#15 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Block/Template.php(275): Mage_Core_Block_Template->fetchView('frontend/defaul...')
#16 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Block/Template.php(289): Mage_Core_Block_Template->renderView()
#17 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Block/Abstract.php(863): Mage_Core_Block_Template->_toHtml()
#18 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Model/Layout.php(529): Mage_Core_Block_Abstract->toHtml()
#19 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Controller/Varien/Action.php(391): Mage_Core_Model_Layout->getOutput()
#20 /chroot/home/babywitc/babywit.com/html/app/code/local/Amasty/Xlanding/controllers/PageController.php(92): Mage_Core_Controller_Varien_Action->renderLayout()
#21 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Controller/Varien/Action.php(420): Amasty_Xlanding_PageController->viewAction()
#22 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(250): Mage_Core_Controller_Varien_Action->dispatch('view')
#23 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Controller/Varien/Front.php(176): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#24 /chroot/home/babywitc/babywit.com/html/app/code/core/Mage/Core/Model/App.php(349): Mage_Core_Controller_Varien_Front->dispatch()
#25 /chroot/home/babywitc/babywit.com/html/app/Mage.php(640): Mage_Core_Model_App->run(Array)
#26 /chroot/home/babywitc/babywit.com/html/index.php(102): Mage::run('', 'store')
#27 {main}