Fatal error: Uncaught Error: Class "GraphQL\Language\VisitorOperation" not found in /home/dodom2/public_html/cgilink.biz/vendor/webonyx/graphql-php/src/Language/VisitorStop.php:5 Stack trace: #0 {main} thrown in /home/dodom2/public_html/cgilink.biz/vendor/webonyx/graphql-php/src/Language/VisitorStop.php on line 5