Fatal error: Uncaught Error: Interface "Doctrine\Instantiator\InstantiatorInterface" not found in /opt/lampp/htdocs/myhospitalnow/mhn-hospital-ms/vendorback/doctrine/instantiator/src/Doctrine/Instantiator/Instantiator.php:21 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/mhn-hospital-ms/vendorback/doctrine/instantiator/src/Doctrine/Instantiator/Instantiator.php on line 21