Fatal error: Uncaught Error: Interface "GuzzleHttp\Post\PostBodyInterface" not found in C:\AppServ\www\greenhess-storage\vendor\guzzlehttp\guzzle\src\Post\PostBody.php:14 Stack trace: #0 {main} thrown in C:\AppServ\www\greenhess-storage\vendor\guzzlehttp\guzzle\src\Post\PostBody.php on line 14