Item (Mage_Catalog_Model_Product) with the same id "6525" already exist

#0 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Eav/Model/Entity/Collection/Abstract.php(265): Varien_Data_Collection->addItem(Object(Mage_Catalog_Model_Product))
#1 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Eav/Model/Entity/Collection/Abstract.php(1057): Mage_Eav_Model_Entity_Collection_Abstract->addItem(Object(Mage_Catalog_Model_Product))
#2 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Eav/Model/Entity/Collection/Abstract.php(871): Mage_Eav_Model_Entity_Collection_Abstract->_loadEntities(false, false)
#3 /var/www/iapn-coins.org/htdocs/lib/Varien/Data/Collection.php(752): Mage_Eav_Model_Entity_Collection_Abstract->load()
#4 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Page/Block/Html/Pager.php(214): Varien_Data_Collection->count()
#5 /var/www/iapn-coins.org/htdocs/app/design/frontend/base/default/template/page/html/pager.phtml(43): Mage_Page_Block_Html_Pager->getLastNum()
#6 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Template.php(241): include('/var/www/iapn-c...')
#7 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('frontend/base/d...')
#8 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#9 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Page/Block/Html/Pager.php(608): Mage_Core_Block_Template->_toHtml()
#10 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Abstract.php(919): Mage_Page_Block_Html_Pager->_toHtml()
#11 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Abstract.php(637): Mage_Core_Block_Abstract->toHtml()
#12 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Abstract.php(581): Mage_Core_Block_Abstract->_getChildHtml('pager_top', true)
#13 /var/www/iapn-coins.org/htdocs/app/design/frontend/base/default/template/catalog/seo/sitemap/container.phtml(34): Mage_Core_Block_Abstract->getChildHtml('pager_top')
#14 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Template.php(241): include('/var/www/iapn-c...')
#15 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('frontend/base/d...')
#16 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#17 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Abstract.php(919): Mage_Core_Block_Template->_toHtml()
#18 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Text/List.php(51): Mage_Core_Block_Abstract->toHtml()
#19 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Abstract.php(919): Mage_Core_Block_Text_List->_toHtml()
#20 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Abstract.php(637): Mage_Core_Block_Abstract->toHtml()
#21 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Abstract.php(581): Mage_Core_Block_Abstract->_getChildHtml('content', true)
#22 /var/www/iapn-coins.org/htdocs/app/design/frontend/iapn/default/template/page/1column.phtml(33): Mage_Core_Block_Abstract->getChildHtml('content')
#23 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Template.php(241): include('/var/www/iapn-c...')
#24 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('frontend/iapn/d...')
#25 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#26 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Block/Abstract.php(919): Mage_Core_Block_Template->_toHtml()
#27 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Model/Layout.php(555): Mage_Core_Block_Abstract->toHtml()
#28 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Controller/Varien/Action.php(390): Mage_Core_Model_Layout->getOutput()
#29 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Catalog/controllers/Seo/SitemapController.php(75): Mage_Core_Controller_Varien_Action->renderLayout()
#30 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Catalog_Seo_SitemapController->productAction()
#31 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(250): Mage_Core_Controller_Varien_Action->dispatch('product')
#32 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#33 /var/www/iapn-coins.org/htdocs/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#34 /var/www/iapn-coins.org/htdocs/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#35 /var/www/iapn-coins.org/htdocs/index.php(16): Mage::run('', 'store')
#36 {main}