Fatal error: Uncaught Error: Interface "Teknoo\Sellsy\Transport\PromiseInterface" not found in /home/trialog/webhooks/vendor/teknoo/sellsy-client/infrastructures/Guzzle6/Guzzle6Promise.php:31 Stack trace: #0 {main} thrown in /home/trialog/webhooks/vendor/teknoo/sellsy-client/infrastructures/Guzzle6/Guzzle6Promise.php on line 31