Fatal error: Uncaught Error: Class "Illuminate\Support\ServiceProvider" not found in /home/tgmart/public_html/api/vendor/mll-lab/laravel-graphiql/src/GraphiQLServiceProvider.php:9 Stack trace: #0 {main} thrown in /home/tgmart/public_html/api/vendor/mll-lab/laravel-graphiql/src/GraphiQLServiceProvider.php on line 9