Fatal error: Uncaught Error: Interface 'GuzzleHttp\Command\ToArrayInterface' not found in /opt/lampp/htdocs/vendor/guzzlehttp/guzzle-services/src/Parameter.php:9 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/vendor/guzzlehttp/guzzle-services/src/Parameter.php on line 9