Fatal error: Uncaught Error: Interface "DocuSign\eSign\Model\ModelInterface" not found in /var/www/web3/vendor/docusign/esign-client/src/Model/ReservedDomainExistence.php:45 Stack trace: #0 {main} thrown in /var/www/web3/vendor/docusign/esign-client/src/Model/ReservedDomainExistence.php on line 45