Warning: strlen() expects parameter 1 to be string, array given  in /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Catalog/Model/Layer/Filter/Attribute.php on line 93

#0 [internal function]: mageCoreErrorHandler(2, 'strlen() expect...', '/www/sites/stg....', 93, Array)
#1 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Catalog/Model/Layer/Filter/Attribute.php(93): strlen(Array)
#2 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Catalog/Block/Layer/Filter/Abstract.php(91): Mage_Catalog_Model_Layer_Filter_Attribute->apply(Object(Mage_Core_Controller_Request_Http), Object(Mage_Catalog_Block_Layer_Filter_Attribute))
#3 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Catalog/Block/Layer/Filter/Abstract.php(73): Mage_Catalog_Block_Layer_Filter_Abstract->_initFilter()
#4 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Catalog/Block/Layer/View.php(136): Mage_Catalog_Block_Layer_Filter_Abstract->init()
#5 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Enterprise/Search/Block/Catalog/Layer/View.php(93): Mage_Catalog_Block_Layer_View->_prepareLayout()
#6 /www/sites/stg.bunzlpd.com/files/html/app/code/local/GoMage/Navigation/Block/Enterprise/Search/Catalog/Layer/View.php(56): Enterprise_Search_Block_Catalog_Layer_View->_prepareLayout()
#7 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Core/Block/Abstract.php(297): GoMage_Navigation_Block_Enterprise_Search_Catalog_Layer_View->_prepareLayout()
#8 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Core/Model/Layout.php(456): Mage_Core_Block_Abstract->setLayout(Object(Mage_Core_Model_Layout))
#9 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Core/Model/Layout.php(472): Mage_Core_Model_Layout->createBlock('gomage_navigati...', 'gomage.enterpri...')
#10 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Core/Model/Layout.php(239): Mage_Core_Model_Layout->addBlock('gomage_navigati...', 'gomage.enterpri...')
#11 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Core/Model/Layout.php(205): Mage_Core_Model_Layout->_generateBlock(Object(Mage_Core_Model_Layout_Element), Object(Mage_Core_Model_Layout_Element))
#12 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Core/Model/Layout.php(210): Mage_Core_Model_Layout->generateBlocks(Object(Mage_Core_Model_Layout_Element))
#13 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Core/Controller/Varien/Action.php(344): Mage_Core_Model_Layout->generateBlocks()
#14 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Catalog/controllers/CategoryController.php(148): Mage_Core_Controller_Varien_Action->generateLayoutBlocks()
#15 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Catalog_CategoryController->viewAction()
#16 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('view')
#17 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#18 /www/sites/stg.bunzlpd.com/files/html/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#19 /www/sites/stg.bunzlpd.com/files/html/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#20 /www/sites/stg.bunzlpd.com/files/html/index.php(89): Mage::run('', 'store')
#21 {main}