Item is not defined error

[christosmito]

I have made a pwa and twa app and released it on play store successfully. On play console I have created a subscription, in order the users to pay for monthly(etc) subscription, but in my app I get item is not defined error when I try to "fetch" it with the digitalgoods API.
This is my code

  let [srv, setSrv] = useState([]);
  let [supported, setSupported] = useState(false);
  let [digitalGoodsError, setDigitalGoodsError] = useState(false);
  useEffect(function () {
    async function getSubs() {
      if (window.getDigitalGoodsService === undefined) {
        // Digital Goods API is not supported in this context.
        return;
      }
      try {
        setSupported(true);
        const digitalGoodsService = await window.getDigitalGoodsService(
          "https://play.google.com/billing"
        );
        const details = await digitalGoodsService.getDetails(["weekly"]);
        let data = [];
        for (item of details) {
          data.push(item.price);
        }
        setSrv(data);
      } catch (error) {
        // Our preferred service provider is not available.
        // Use a normal web-based payment flow.
        console.error("Failed to get service:", error.message);
        setDigitalGoodsError("Failed to get service: " + error.message);
        return;
      }
    }
    getSubs();
  }, []);

And those are the subscriptions, which are active

Why do I get the item is not defined error?

[phoglenix]

Can you show what the JS console output is when you run the above code?
What is the value of the data variable when you call setSrv(data)