Fatal error: Uncaught Error: Interface "CoreInterfaces\Core\Response\ResponseInterface" not found in /home/busines5/public_html/mailer.businessbrandagency.com/vendor/apimatic/core/tests/Mocking/Response/MockResponse.php:11 Stack trace: #0 {main} thrown in /home/busines5/public_html/mailer.businessbrandagency.com/vendor/apimatic/core/tests/Mocking/Response/MockResponse.php on line 11