Update PHP7.1 For Error CDbException

[developer]

Hi @twisted1919

I have used mailwizz 1.3.8.3.

I have Update PHP 7.1 for display Following error - http://screencast.com/t/Mb1Kf3cmTIOJ

I have Check Applications Log for display some error .

2016/12/28 11:14:44 [error] [exception.CDbException] CDbException: CDbConnection is unable to find PDO class "PDO". Make sure PDO is installed correctly. in /home/admin/public_html/apps/common/framework/db/CDbConnection.php:442
Stack trace:
#0 /home/admin/public_html/apps/common/framework/db/CDbConnection.php(391): CDbConnection->createPdoInstance()
#1 /home/admin/public_html/apps/common/framework/db/CDbConnection.php(347): CDbConnection->open()
#2 /home/admin/public_html/apps/common/framework/db/CDbConnection.php(325): CDbConnection->setActive(true)
#3 /home/admin/public_html/apps/common/framework/base/CModule.php(394): CDbConnection->init()
#4 /home/admin/public_html/apps/common/framework/base/CModule.php(103): CModule->getComponent('db')
#5/home/admin/public_html/apps/common/components/managers/OptionsManager.php(164): CModule->__get('db')
#6/home/admin/public_html/apps/common/components/managers/OptionsManager.php(73): OptionsManager->loadCategory('site_status')
#7 /home/admin/public_html/apps/common/components/init/SystemInit.php(48): OptionsManager->get('system.common.s...')
#8 /home/admin/public_html/apps/common/framework/base/CComponent.php(561): SystemInit->_runOnBeginRequest(Object(CEvent))
#9 /home/admin/public_html/apps/common/framework/base/CApplication.php(212): CComponent->raiseEvent('onbeginrequest', Object(CEvent))
#10 /home/admin/public_html/apps/common/framework/base/CApplication.php(183): CApplication->onBeginRequest(Object(CEvent))
#11 /home/admin/public_html/apps/init.php(227): CApplication->run()
#12 /home/admin/public_html/index.php(18): require_once('/home/admin...')
#13 {main}
REQUEST_URI=/index.php/campaigns/kn16657kq6908/track-opening/ao1350os7g634

Please Help Me .

 

[twisted1919]

Is PDO installed ? The error message says it isn't, so that's where i would start...