Fatal error: Uncaught Error: Class "GraphQL\Type\Definition\ScalarType" not found in /home/telefonai/public_html/test.telefonai.eu/vendor/webonyx/graphql-php/src/Type/Definition/CustomScalarType.php:14 Stack trace: #0 {main} thrown in /home/telefonai/public_html/test.telefonai.eu/vendor/webonyx/graphql-php/src/Type/Definition/CustomScalarType.php on line 14