Fatal error: Uncaught Error: Class "GraphQL\Language\VisitorOperation" not found in /var/www/crm_killing_ninja/vendor/webonyx/graphql-php/src/Language/VisitorSkipNode.php:5 Stack trace: #0 {main} thrown in /var/www/crm_killing_ninja/vendor/webonyx/graphql-php/src/Language/VisitorSkipNode.php on line 5