Fatal error: Uncaught Error: Class 'WPMailSMTP\Providers\AuthAbstract' not found in /home/ursatac/public_html/wp-content/plugins/wp-mail-smtp-pro/src/Pro/Providers/Outlook/Auth.php:21 Stack trace: #0 {main} thrown in /home/ursatac/public_html/wp-content/plugins/wp-mail-smtp-pro/src/Pro/Providers/Outlook/Auth.php on line 21