Fatal error: Uncaught Error: Interface 'GuzzleHttp\Promise\PromisorInterface' not found in C:\gen\ms_core\DiscordApi\vendor\aws\aws-sdk-php\src\Multipart\AbstractUploadManager.php:21 Stack trace: #0 {main} thrown in C:\gen\ms_core\DiscordApi\vendor\aws\aws-sdk-php\src\Multipart\AbstractUploadManager.php on line 21