Fatal error: Uncaught Error: Interface 'Illuminate\Contracts\Broadcasting\Factory' not found in /var/www/html/stz-api/vendor/laravel/framework/src/Illuminate/Broadcasting/BroadcastManager.php:21 Stack trace: #0 {main} thrown in /var/www/html/stz-api/vendor/laravel/framework/src/Illuminate/Broadcasting/BroadcastManager.php on line 21