Fatal error: Uncaught Error: Class 'PHPMailer' not found in /volume1/web/usdhorg/plugin/PHPMailer/class.phpmaileroauth.php on line 26

Error: Class 'PHPMailer' not found in /volume1/web/usdhorg/plugin/PHPMailer/class.phpmaileroauth.php on line 26

Call Stack:
    0.0000     357696   1. {main}() /volume1/web/usdhorg/plugin/PHPMailer/class.phpmaileroauth.php:0