Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Mail\Factory" not found in /usr/www/unityweb/public/hms/vendor/laravel/framework/src/Illuminate/Mail/MailManager.php:38 Stack trace: #0 {main} thrown in /usr/www/unityweb/public/hms/vendor/laravel/framework/src/Illuminate/Mail/MailManager.php on line 38