Fatal error: Uncaught Error: Interface "PHPMailer\PHPMailer\OAuthTokenProvider" not found in /home/appdemo/public_html/samena-mailer/PHPMailer/src/OAuth.php:36 Stack trace: #0 {main} thrown in /home/appdemo/public_html/samena-mailer/PHPMailer/src/OAuth.php on line 36