Fatal error: Uncaught Error: Interface 'WPMailSMTP\Vendor\Google\Auth\FetchAuthTokenInterface' not found in E:\www\web\wp-content\plugins\wp-mail-smtp\vendor_prefixed\google\auth\src\SignBlobInterface.php:23
Stack trace:
#0 {main}
thrown in E:\www\web\wp-content\plugins\wp-mail-smtp\vendor_prefixed\google\auth\src\SignBlobInterface.php on line 23