Fatal error: Uncaught Error: Interface "PHPMailer\PHPMailer\OAuthTokenProvider" not found in /users/aufklebersprung/www/PHPmailer/PHPMailer-master/src/OAuth.php:36 Stack trace: #0 {main} thrown in /users/aufklebersprung/www/PHPmailer/PHPMailer-master/src/OAuth.php on line 36