Notice: Array to string conversion  in /var/www/tanzanitas/app/code/core/Mage/Core/Model/Layout.php on line 555

#0 /var/www/tanzanitas/app/code/core/Mage/Core/Model/Layout.php(555): mageCoreErrorHandler(8, 'Array to string...', '/var/www/tanzan...', 555, Array)
#1 /var/www/tanzanitas/app/code/core/Mage/Core/Controller/Varien/Action.php(390): Mage_Core_Model_Layout->getOutput()
#2 /var/www/tanzanitas/app/code/core/Mage/Cms/Helper/Page.php(137): Mage_Core_Controller_Varien_Action->renderLayout()
#3 /var/www/tanzanitas/app/code/core/Mage/Cms/Helper/Page.php(52): Mage_Cms_Helper_Page->_renderPage(Object(Mage_Cms_PageController), '12')
#4 /var/www/tanzanitas/app/code/core/Mage/Cms/controllers/PageController.php(45): Mage_Cms_Helper_Page->renderPage(Object(Mage_Cms_PageController), '12')
#5 /var/www/tanzanitas/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Cms_PageController->viewAction()
#6 /var/www/tanzanitas/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('view')
#7 /var/www/tanzanitas/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#8 /var/www/tanzanitas/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#9 /var/www/tanzanitas/app/Mage.php(683): Mage_Core_Model_App->run(Array)
#10 /var/www/tanzanitas/index.php(90): Mage::run('', 'store')
#11 {main}