Fatal error: Uncaught Error: Class 'FacebookAds\Object\ServerSide\UserData' not found in /home/beautybumble/public_html/app/code/Facebook/BusinessExtension/Helper/ServerEventFactory.php:21 Stack trace: #0 /home/beautybumble/public_html/app/code/Facebook/BusinessExtension/Helper/ServerEventFactory.php(132): Facebook\BusinessExtension\Helper\ServerEventFactory::newEvent('ViewCategory', 'a734ec96-9353-4...') #1 /home/beautybumble/public_html/app/code/Facebook/BusinessExtension/Observer/ViewCategory.php(47): Facebook\BusinessExtension\Helper\ServerEventFactory::createEvent('ViewCategory', Array, 'a734ec96-9353-4...') #2 /home/beautybumble/public_html/vendor/magento/framework/Event/Invoker/InvokerDefault.php(88): Facebook\BusinessExtension\Observer\ViewCategory->execute(Object(Magento\Framework\Event\Observer)) #3 /home/beautybumble/public_html/vendor/magento/framework/Event/Invoker/InvokerDefault.php(74): Magento\Framework\Event\Invoker\InvokerDefault->_callObserverMethod(Object(Facebook\BusinessExtension\Observer\ViewCategor in /home/beautybumble/public_html/app/code/Facebook/BusinessExtension/Helper/ServerEventFactory.php on line 21