Fatal error: Uncaught Error: Interface 'PHPMailer\PHPMailer\OAuthTokenProvider' not found in /home/hostin/public_html/e-commerce/PHPMailer-master/src/OAuth.php:36 Stack trace: #0 {main} thrown in /home/hostin/public_html/e-commerce/PHPMailer-master/src/OAuth.php on line 36