Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Events\Dispatcher" not found in /opt/lampp/htdocs/myhospitalnow/mhn-hospital-ms/vendorback/laravel/framework/src/Illuminate/Events/Dispatcher.php:16 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/mhn-hospital-ms/vendorback/laravel/framework/src/Illuminate/Events/Dispatcher.php on line 16