Fatal error: Uncaught Error: Class "Illuminate\Support\Manager" not found in /home/backend/public_html/fm360/system/vendor/laravel/framework/src/Illuminate/Notifications/ChannelManager.php:12 Stack trace: #0 {main} thrown in /home/backend/public_html/fm360/system/vendor/laravel/framework/src/Illuminate/Notifications/ChannelManager.php on line 12