Fatal error: Uncaught Error: Class 'WPMailSMTP\Vendor\Google\Auth\HttpHandler\Guzzle6HttpHandler' not found in E:\www\web\wp-content\plugins\wp-mail-smtp\vendor_prefixed\google\auth\src\HttpHandler\Guzzle7HttpHandler.php:20 Stack trace: #0 {main} thrown in E:\www\web\wp-content\plugins\wp-mail-smtp\vendor_prefixed\google\auth\src\HttpHandler\Guzzle7HttpHandler.php on line 20