Fatal error: Uncaught Error: Class "GraphQL\Executor\Promise\Adapter\SyncPromise" not found in C:\xampp\htdocs\SuiteCRM-8.9.2\vendor\webonyx\graphql-php\src\Deferred.php:10 Stack trace: #0 {main} thrown in C:\xampp\htdocs\SuiteCRM-8.9.2\vendor\webonyx\graphql-php\src\Deferred.php on line 10