Fatal error: Uncaught Error: Interface "GuzzleHttp\Command\ToArrayInterface" not found in E:\phpProject\TEST\vat_api_de_client\vendor\guzzlehttp\guzzle-services\src\Operation.php:10 Stack trace: #0 {main} thrown in E:\phpProject\TEST\vat_api_de_client\vendor\guzzlehttp\guzzle-services\src\Operation.php on line 10