Fatal error: Uncaught Error: Class "Zend\Di\InstanceManager" not found in /home/mailtrim/public_html/vendor-backup/zendframework/zend-servicemanager-di/src/DiInstanceManagerProxy.php:22 Stack trace: #0 {main} thrown in /home/mailtrim/public_html/vendor-backup/zendframework/zend-servicemanager-di/src/DiInstanceManagerProxy.php on line 22