Item (AW_Blog_Model_Cat) with the same id "1" already exist

#0 /home/tlcledco/public_html/lib/Varien/Data/Collection/Db.php(582): Varien_Data_Collection->addItem(Object(AW_Blog_Model_Cat))
#1 /home/tlcledco/public_html/lib/Varien/Data/Collection.php(741): Varien_Data_Collection_Db->load()
#2 /home/tlcledco/public_html/app/code/community/AW/Blog/Model/Post.php(93): Varien_Data_Collection->getIterator()
#3 /home/tlcledco/public_html/app/design/frontend/hoker/default/template/aw_blog/post.phtml(7): AW_Blog_Model_Post->getCats()
#4 /home/tlcledco/public_html/app/code/core/Mage/Core/Block/Template.php(241): include('/home/tlcledco/...')
#5 /home/tlcledco/public_html/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('frontend/hoker/...')
#6 /home/tlcledco/public_html/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#7 /home/tlcledco/public_html/app/code/community/AW/Blog/Block/Abstract.php(180): Mage_Core_Block_Template->_toHtml()
#8 /home/tlcledco/public_html/app/code/core/Mage/Core/Block/Abstract.php(923): AW_Blog_Block_Abstract->_toHtml()
#9 /home/tlcledco/public_html/app/code/core/Mage/Core/Block/Text/List.php(43): Mage_Core_Block_Abstract->toHtml()
#10 /home/tlcledco/public_html/app/code/core/Mage/Core/Block/Abstract.php(923): Mage_Core_Block_Text_List->_toHtml()
#11 /home/tlcledco/public_html/app/code/core/Mage/Core/Block/Abstract.php(641): Mage_Core_Block_Abstract->toHtml()
#12 /home/tlcledco/public_html/app/code/core/Mage/Core/Block/Abstract.php(585): Mage_Core_Block_Abstract->_getChildHtml('content', true)
#13 /home/tlcledco/public_html/app/design/frontend/hoker/default/template/page/2columns-left.phtml(47): Mage_Core_Block_Abstract->getChildHtml('content')
#14 /home/tlcledco/public_html/app/code/core/Mage/Core/Block/Template.php(241): include('/home/tlcledco/...')
#15 /home/tlcledco/public_html/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('frontend/hoker/...')
#16 /home/tlcledco/public_html/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#17 /home/tlcledco/public_html/app/code/core/Mage/Core/Block/Abstract.php(923): Mage_Core_Block_Template->_toHtml()
#18 /home/tlcledco/public_html/app/code/core/Mage/Core/Model/Layout.php(555): Mage_Core_Block_Abstract->toHtml()
#19 /home/tlcledco/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(390): Mage_Core_Model_Layout->getOutput()
#20 /home/tlcledco/public_html/app/code/community/AW/Blog/Helper/Post.php(65): Mage_Core_Controller_Varien_Action->renderLayout()
#21 /home/tlcledco/public_html/app/code/community/AW/Blog/controllers/PostController.php(187): AW_Blog_Helper_Post->renderPage(Object(AW_Blog_PostController), 'must-have-magen...')
#22 /home/tlcledco/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(418): AW_Blog_PostController->viewAction()
#23 /home/tlcledco/public_html/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('view')
#24 /home/tlcledco/public_html/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#25 /home/tlcledco/public_html/app/code/core/Mage/Core/Model/App.php(365): Mage_Core_Controller_Varien_Front->dispatch()
#26 /home/tlcledco/public_html/app/Mage.php(683): Mage_Core_Model_App->run(Array)
#27 /home/tlcledco/public_html/index.php(83): Mage::run('', 'store')
#28 {main}