Fatal error: Uncaught Error: Interface "PHPMailer\PHPMailer\OAuthTokenProvider" not found in /opt/bitnami/apache/htdocs_cdn/resources/vendor/phpmailer6.8/src/OAuth.php:36 Stack trace: #0 {main} thrown in /opt/bitnami/apache/htdocs_cdn/resources/vendor/phpmailer6.8/src/OAuth.php on line 36