Fatal error: Uncaught Error: Class "Nextend\Framework\Form\ContainerGeneral" not found in /var/www/andovercg/staging/wp-content/plugins/smart-slider-3/Nextend/Framework/Form/Container/ContainerAlternative.php:9
Stack trace:
#0 {main}
thrown in /var/www/andovercg/staging/wp-content/plugins/smart-slider-3/Nextend/Framework/Form/Container/ContainerAlternative.php on line 9