Fatal error: Uncaught Error: Interface "PHPMailer\PHPMailer\OAuthTokenProvider" not found in /home/vtdemo/public_html/shaktishree/application/third_party/phpmailer/src/OAuth.php:36 Stack trace: #0 {main} thrown in /home/vtdemo/public_html/shaktishree/application/third_party/phpmailer/src/OAuth.php on line 36