Fatal error: Uncaught Error: Function name must be a string in /home/cvapor/app/code/core/Mage/Core/Model/Layout.php:555
Stack trace:
#0 /home/cvapor/app/code/core/Mage/Core/Controller/Varien/Action.php(390): Mage_Core_Model_Layout->getOutput()
#1 /home/cvapor/app/code/core/Mage/Install/controllers/WizardController.php(120): Mage_Core_Controller_Varien_Action->renderLayout()
#2 /home/cvapor/app/code/core/Mage/Core/Controller/Varien/Action.php(419): Mage_Install_WizardController->beginAction()
#3 /home/cvapor/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('begin')
#4 /home/cvapor/app/code/core/Mage/Core/Controller/Varien/Front.php(176): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#5 /home/cvapor/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#6 /home/cvapor/app/Mage.php(682): Mage_Core_Model_App->run(Array)
#7 /home/cvapor/index.php(104): Mage::run()
#8 {main}
thro in /home/cvapor/app/code/core/Mage/Core/Model/Layout.php on line 555