Fatal error: Uncaught Error: Interface "Teknoo\Immutable\ImmutableInterface" not found in /home/trialog/webhooks/vendor/teknoo/sellsy-client/src/Method/MethodInterface.php:46 Stack trace: #0 {main} thrown in /home/trialog/webhooks/vendor/teknoo/sellsy-client/src/Method/MethodInterface.php on line 46