Fatal error: Uncaught Error: Interface 'Zend\Mail\Header\HeaderInterface' not found in /home/appilogicx/public_html/marketing/vendor/zendframework/zend-mail/src/Header/MultipleHeadersInterface.php:10 Stack trace: #0 {main} thrown in /home/appilogicx/public_html/marketing/vendor/zendframework/zend-mail/src/Header/MultipleHeadersInterface.php on line 10