Fatal error: Uncaught Error: Interface 'WPMailSMTP\Vendor\GuzzleHttp\Promise\PromisorInterface' not found in C:\xampp\htdocs\wp-content\plugins\wp-mail-smtp\vendor_prefixed\guzzlehttp\promises\src\EachPromise.php:12 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wp-content\plugins\wp-mail-smtp\vendor_prefixed\guzzlehttp\promises\src\EachPromise.php on line 12