Fatal error: Uncaught Error: Class "GraphQL\Validator\Rules\ValidationRule" not found in /home/v5ylnh3uow4c/public_html/wp-content/plugins/wp-graphql/vendor/webonyx/graphql-php/src/Validator/Rules/KnownArgumentNames.php:20 Stack trace: #0 {main} thrown in /home/v5ylnh3uow4c/public_html/wp-content/plugins/wp-graphql/vendor/webonyx/graphql-php/src/Validator/Rules/KnownArgumentNames.php on line 20