Field 'fulfillmentCreate' doesn't exist on type 'Mutation

[alex0000]

here is the error

"errors": [
    {
      "message": "Field 'fulfillmentCreate' doesn't exist on type 'Mutation'",
      "locations": [
        {
          "line": 2,
          "column": 9
        }
      ],
      "path": [
        "mutation fulfillmentCreate",
        "fulfillmentCreate"
      ],
      "extensions": {
        "code": "undefinedField",
        "typeName": "Mutation",
        "fieldName": "fulfillmentCreate"
      }
    },
    {
      "message": "Variable $input is declared by fulfillmentCreate but not used",
      "locations": [
        {
          "line": 1,
          "column": 1
        }
      ],
      "path": [
        "mutation fulfillmentCreate"
      ],
      "extensions": {
        "code": "variableNotUsed",
        "variableName": "input"
      }
    }
  ],

i got the same code for months and it work well but recently I have this error, has this function been removed from graphql?

here is the code with nodejs package -> @Shopify/shopify-api

await shopifyGraphqlClient.query({
    data: {
      query: `mutation fulfillmentCreate($input: FulfillmentInput!) {
        fulfillmentCreate(input: $input) {
          userErrors {
            field
            message
          }
        }
      }`,
      variables: {
        input: {
          locationId: locationId,
          notifyCustomer: false,
          orderId: `gid://shopify/Order/${order.marketplaceOrderId}`,
          ...trackingInfos,
        },
      },
    },
  })

I point out that this code has been working for months,

could someone please enlighten me?