Warning: strpos() expects parameter 1 to be string, array given  in /home/workswi1/public_html/app/code/local/Attain/Advancedcms/Model/Observer.php on line 27

#0 [internal function]: mageCoreErrorHandler(2, 'strpos() expect...', '/home/workswi1/...', 27, Array)
#1 /home/workswi1/public_html/app/code/local/Attain/Advancedcms/Model/Observer.php(27): strpos(Array, 'null')
#2 /home/workswi1/public_html/app/code/core/Mage/Core/Model/App.php(1339): Attain_Advancedcms_Model_Observer->loadFields(Object(Varien_Event_Observer))
#3 /home/workswi1/public_html/app/code/core/Mage/Core/Model/App.php(1318): Mage_Core_Model_App->_callObserverMethod(Object(Attain_Advancedcms_Model_Observer), 'loadFields', Object(Varien_Event_Observer))
#4 /home/workswi1/public_html/app/Mage.php(448): Mage_Core_Model_App->dispatchEvent('cms_page_render', Array)
#5 /home/workswi1/public_html/app/code/core/Mage/Cms/Helper/Page.php(107): Mage::dispatchEvent('cms_page_render', Array)
#6 /home/workswi1/public_html/app/code/core/Mage/Cms/Helper/Page.php(52): Mage_Cms_Helper_Page->_renderPage(Object(Mage_Cms_PageController), '15')
#7 /home/workswi1/public_html/app/code/community/JR/CleverCms/Helper/Cms/Page.php(13): Mage_Cms_Helper_Page->renderPage(Object(Mage_Cms_PageController), '15')
#8 /home/workswi1/public_html/app/code/core/Mage/Cms/controllers/PageController.php(45): JR_CleverCms_Helper_Cms_Page->renderPage(Object(Mage_Cms_PageController), '15')
#9 /home/workswi1/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Cms_PageController->viewAction()
#10 /home/workswi1/public_html/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('view')
#11 /home/workswi1/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))
#12 /home/workswi1/public_html/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#13 /home/workswi1/public_html/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#14 /home/workswi1/public_html/index.php(91): Mage::run('', 'store')
#15 {main}