Fatal error: Uncaught Error: Interface "Nuwave\Lighthouse\Execution\ErrorHandler" not found in /home/tgmart/public_html/api/vendor/nuwave/lighthouse/src/Testing/RethrowingErrorHandler.php:11 Stack trace: #0 {main} thrown in /home/tgmart/public_html/api/vendor/nuwave/lighthouse/src/Testing/RethrowingErrorHandler.php on line 11