Fatal error: Uncaught Error: Class "GraphQL\Validator\Rules\ValidationRule" not found in /opt/lampp/htdocs/myhospitalnow/suitecrm/vendor/webonyx/graphql-php/src/Validator/Rules/KnownArgumentNamesOnDirectives.php:27 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/suitecrm/vendor/webonyx/graphql-php/src/Validator/Rules/KnownArgumentNamesOnDirectives.php on line 27