Fatal error: Uncaught Error: Class 'WPMailSMTP\Admin\PageAbstract' not found in /home/wpsindicoprofiss/www/wp-content/plugins/wp-mail-smtp/src/Admin/Pages/ActionSchedulerTab.php:12 Stack trace: #0 {main} thrown in /home/wpsindicoprofiss/www/wp-content/plugins/wp-mail-smtp/src/Admin/Pages/ActionSchedulerTab.php on line 12