Fatal error: Uncaught Error: Class "GraphQL\Validator\Rules\ValidationRule" not found in /home/keshavvps/public_html/keshav/KG1/vinidu-api/src/Validator/Rules/NoFragmentCycles.php:21 Stack trace: #0 {main} thrown in /home/keshavvps/public_html/keshav/KG1/vinidu-api/src/Validator/Rules/NoFragmentCycles.php on line 21