Warning: get_class() expects parameter 1 to be object, boolean given  in /home/furnitu1/public_html/app/code/core/Mage/Core/Model/App.php on line 1274

#0 [internal function]: mageCoreErrorHandler(2, 'get_class() exp...', '/home/furnitu1/...', 1274, Array)
#1 /home/furnitu1/public_html/app/code/core/Mage/Core/Model/App.php(1274): get_class(false)
#2 /home/furnitu1/public_html/app/code/core/Mage/Core/Model/App.php(1253): Mage_Core_Model_App->_callObserverMethod(false, 'replacePriceHtm...', Object(Varien_Event_Observer))
#3 /home/furnitu1/public_html/app/Mage.php(416): Mage_Core_Model_App->dispatchEvent('core_block_abst...', Array)
#4 /home/furnitu1/public_html/app/code/core/Mage/Core/Block/Abstract.php(745): Mage::dispatchEvent('core_block_abst...', Array)
#5 /home/furnitu1/public_html/app/code/core/Mage/Core/Model/Layout.php(529): Mage_Core_Block_Abstract->toHtml()
#6 /home/furnitu1/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(391): Mage_Core_Model_Layout->getOutput()
#7 /home/furnitu1/public_html/app/code/core/Mage/Catalog/controllers/CategoryController.php(159): Mage_Core_Controller_Varien_Action->renderLayout()
#8 /home/furnitu1/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(420): Mage_Catalog_CategoryController->viewAction()
#9 /home/furnitu1/public_html/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(253): Mage_Core_Controller_Varien_Action->dispatch('view')
#10 /home/furnitu1/public_html/app/code/core/Mage/Core/Controller/Varien/Front.php(176): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#11 /home/furnitu1/public_html/app/code/core/Mage/Core/Model/App.php(340): Mage_Core_Controller_Varien_Front->dispatch()
#12 /home/furnitu1/public_html/app/Mage.php(627): Mage_Core_Model_App->run(Array)
#13 /home/furnitu1/public_html/index.php(80): Mage::run('', 'store')
#14 {main}