Notice: Use of undefined constant active - assumed 'active'  in /var/www/html/mgs/demo/mgspanel/app/code/local/MGS/Testimonial/Block/List.php on line 52

#0 /var/www/html/mgs/demo/mgspanel/app/code/local/MGS/Testimonial/Block/List.php(52): mageCoreErrorHandler(8, 'Use of undefine...', '/var/www/html/m...', 52, Array)
#1 /var/www/html/mgs/demo/mgspanel/app/design/frontend/mgstheme/default/template/mgs/testimonial/list.phtml(1): MGS_Testimonial_Block_List->getTestimonialsPager()
#2 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Block/Template.php(241): include('/var/www/html/m...')
#3 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('frontend/mgsthe...')
#4 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#5 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Block/Abstract.php(919): Mage_Core_Block_Template->_toHtml()
#6 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Block/Text/List.php(43): Mage_Core_Block_Abstract->toHtml()
#7 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Block/Abstract.php(919): Mage_Core_Block_Text_List->_toHtml()
#8 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Block/Abstract.php(637): Mage_Core_Block_Abstract->toHtml()
#9 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Block/Abstract.php(581): Mage_Core_Block_Abstract->_getChildHtml('content', true)
#10 /var/www/html/mgs/demo/mgspanel/app/design/frontend/mgstheme/default/template/page/1column.phtml(47): Mage_Core_Block_Abstract->getChildHtml('content')
#11 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Block/Template.php(241): include('/var/www/html/m...')
#12 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('frontend/mgsthe...')
#13 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#14 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Block/Abstract.php(919): Mage_Core_Block_Template->_toHtml()
#15 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Model/Layout.php(555): Mage_Core_Block_Abstract->toHtml()
#16 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Controller/Varien/Action.php(390): Mage_Core_Model_Layout->getOutput()
#17 /var/www/html/mgs/demo/mgspanel/app/code/local/MGS/Testimonial/controllers/IndexController.php(8): Mage_Core_Controller_Varien_Action->renderLayout()
#18 /var/www/html/mgs/demo/mgspanel/app/code/local/MGS/Testimonial/controllers/IndexController.php(55): MGS_Testimonial_IndexController->rLayout()
#19 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Controller/Varien/Action.php(418): MGS_Testimonial_IndexController->indexAction()
#20 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(250): Mage_Core_Controller_Varien_Action->dispatch('index')
#21 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#22 /var/www/html/mgs/demo/mgspanel/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#23 /var/www/html/mgs/demo/mgspanel/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#24 /var/www/html/mgs/demo/mgspanel/index.php(87): Mage::run('', 'store')
#25 {main}