Notice: Use of undefined constant i - assumed 'i'  in /home/artisna/public_html/app/design/frontend/ultimo/default/template/catalog/seo/tree.phtml on line 141

#0 /home/artisna/public_html/app/design/frontend/ultimo/default/template/catalog/seo/tree.phtml(141): mageCoreErrorHandler(8, 'Use of undefine...', '/home/artisna/p...', 141, Array)
#1 /home/artisna/public_html/app/design/frontend/ultimo/default/template/catalog/seo/tree.phtml(50): getLastCategory(Object(Mage_Catalog_Model_Category))
#2 /home/artisna/public_html/app/code/core/Mage/Core/Block/Template.php(241): include('/home/artisna/p...')
#3 /home/artisna/public_html/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('frontend/ultimo...')
#4 /home/artisna/public_html/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#5 /home/artisna/public_html/app/code/core/Mage/Core/Block/Abstract.php(923): Mage_Core_Block_Template->_toHtml()
#6 /home/artisna/public_html/app/code/core/Mage/Core/Block/Abstract.php(641): Mage_Core_Block_Abstract->toHtml()
#7 /home/artisna/public_html/app/code/core/Mage/Core/Block/Abstract.php(585): Mage_Core_Block_Abstract->_getChildHtml('sitemap', true)
#8 /home/artisna/public_html/app/design/frontend/base/default/template/catalog/seo/sitemap/container.phtml(35): Mage_Core_Block_Abstract->getChildHtml('sitemap')
#9 /home/artisna/public_html/app/code/core/Mage/Core/Block/Template.php(241): include('/home/artisna/p...')
#10 /home/artisna/public_html/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('frontend/base/d...')
#11 /home/artisna/public_html/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#12 /home/artisna/public_html/app/code/core/Mage/Core/Block/Abstract.php(923): Mage_Core_Block_Template->_toHtml()
#13 /home/artisna/public_html/app/code/core/Mage/Core/Block/Text/List.php(43): Mage_Core_Block_Abstract->toHtml()
#14 /home/artisna/public_html/app/code/core/Mage/Core/Block/Abstract.php(923): Mage_Core_Block_Text_List->_toHtml()
#15 /home/artisna/public_html/app/code/core/Mage/Core/Block/Abstract.php(641): Mage_Core_Block_Abstract->toHtml()
#16 /home/artisna/public_html/app/code/core/Mage/Core/Block/Abstract.php(585): Mage_Core_Block_Abstract->_getChildHtml('content', true)
#17 /home/artisna/public_html/app/design/frontend/ultimo/default/template/page/1column.phtml(59): Mage_Core_Block_Abstract->getChildHtml('content')
#18 /home/artisna/public_html/app/code/core/Mage/Core/Block/Template.php(241): include('/home/artisna/p...')
#19 /home/artisna/public_html/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('frontend/ultimo...')
#20 /home/artisna/public_html/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#21 /home/artisna/public_html/app/code/core/Mage/Core/Block/Abstract.php(923): Mage_Core_Block_Template->_toHtml()
#22 /home/artisna/public_html/app/code/core/Mage/Core/Model/Layout.php(555): Mage_Core_Block_Abstract->toHtml()
#23 /home/artisna/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(390): Mage_Core_Model_Layout->getOutput()
#24 /home/artisna/public_html/app/code/core/Mage/Catalog/controllers/Seo/SitemapController.php(65): Mage_Core_Controller_Varien_Action->renderLayout()
#25 /home/artisna/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Catalog_Seo_SitemapController->categoryAction()
#26 /home/artisna/public_html/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('category')
#27 /home/artisna/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))
#28 /home/artisna/public_html/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#29 /home/artisna/public_html/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#30 /home/artisna/public_html/index.php(93): Mage::run('', 'store')
#31 {main}