Fatal error: Uncaught Error: Class "Illuminate\Support\Manager" not found in /usr/www/unityweb/public/hms/vendor/laravel/framework/src/Illuminate/Notifications/ChannelManager.php:14 Stack trace: #0 {main} thrown in /usr/www/unityweb/public/hms/vendor/laravel/framework/src/Illuminate/Notifications/ChannelManager.php on line 14