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