Fatal error: Uncaught Error: Interface "GraphQL\Executor\ExecutorImplementation" not found in /var/www/crm_killing_ninja/vendor/webonyx/graphql-php/src/Executor/ReferenceExecutor.php:43 Stack trace: #0 {main} thrown in /var/www/crm_killing_ninja/vendor/webonyx/graphql-php/src/Executor/ReferenceExecutor.php on line 43