Fatal error: Uncaught Error: Class 'WPMailSMTP\Providers\MailerAbstract' not found in /home/wpsindicoprofiss/www/wp-content/plugins/wp-mail-smtp/src/Providers/SMTPcom/Mailer.php:16 Stack trace: #0 {main} thrown in /home/wpsindicoprofiss/www/wp-content/plugins/wp-mail-smtp/src/Providers/SMTPcom/Mailer.php on line 16