Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\Session\Attribute\AttributeBag" not found in /opt/lampp/htdocs/myhospitalnow/mhn-hospital-ms/vendorback/symfony/http-foundation/Session/Attribute/NamespacedAttributeBag.php:20 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/mhn-hospital-ms/vendorback/symfony/http-foundation/Session/Attribute/NamespacedAttributeBag.php on line 20