Fatal error: Uncaught Error: Class "Nuwave\Lighthouse\Support\DriverManager" not found in /home/tgmart/public_html/api/vendor/nuwave/lighthouse/src/Subscriptions/BroadcastDriverManager.php:20 Stack trace: #0 {main} thrown in /home/tgmart/public_html/api/vendor/nuwave/lighthouse/src/Subscriptions/BroadcastDriverManager.php on line 20