Recoverable Error: Argument 1 passed to Varien_Object::addData() must be of the type array, null given, called in /var/www/app/code/community/RonisBT/Cms/Model/Page.php on line 88 and defined  in /var/www/lib/Varien/Object.php on line 243

#0 /var/www/lib/Varien/Object.php(243): mageCoreErrorHandler(4096, 'Argument 1 pass...', '/var/www/lib/Va...', 243, Array)
#1 /var/www/app/code/community/RonisBT/Cms/Model/Page.php(88): Varien_Object->addData(NULL)
#2 /var/www/app/code/community/RonisBT/Cms/Model/Page.php(103): RonisBT_Cms_Model_Page->getPageType()
#3 /var/www/app/code/community/RonisBT/Cms/Model/Page.php(342): RonisBT_Cms_Model_Page->getTypeCode()
#4 /var/www/app/code/community/RonisBT/Cms/controllers/PageController.php(44): RonisBT_Cms_Model_Page->getRedirectUrl()
#5 /var/www/app/code/core/Mage/Core/Controller/Varien/Action.php(418): RonisBT_Cms_PageController->viewAction()
#6 /var/www/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('view')
#7 /var/www/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/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#9 /var/www/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#10 /var/www/index.php(80): Mage::run('', 'store')
#11 {main}