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