There's no page at this address

Here is my shopify.js configs:

import { BillingInterval, LATEST_API_VERSION } from "@shopify/shopify-api";
import { shopifyApp } from "@shopify/shopify-app-express";
import { SQLiteSessionStorage } from "@shopify/shopify-app-session-storage-sqlite";
import { restResources } from "@shopify/shopify-api/rest/admin/2023-07";

const DB_PATH = `${process.cwd()}/database.sqlite`;

// The transactions with Shopify will always be marked as test transactions, unless NODE_ENV is production.
// See the ensureBilling helper to learn more about billing in this template.
const billingConfig = {
  "My Shopify One-Time Charge": {
    // This is an example configuration that would do a one-time charge for $5 (only USD is currently supported)
    amount: 5.0,
    currencyCode: "USD",
    interval: BillingInterval.OneTime,
  },
};

const scopes =
  "read_customers,read_orders,read_products,write_customers,write_products";

const hostName = "https://appname.domain.com";

const SHOPIFY_API_KEY = "#########";

const SHOPIFY_API_SECRET = "#######";

const shopify = shopifyApp({
  useOnlineTokens: true,
  api: {
    apiKey: SHOPIFY_API_KEY,
    apiSecretKey: SHOPIFY_API_SECRET,
    scopes: scopes.split(","),
    // hostName: hostName.replace(/https?:\/\//, ""),
    apiVersion: LATEST_API_VERSION,
    restResources,
    billing: undefined, // or replace with billingConfig above to enable example billing
  },
  auth: {
    path: "/api/auth",
    callbackPath: "/api/auth/callback",
  },
  webhooks: {
    path: "/api/webhooks",
  },
  // This should be replaced with your preferred storage strategy
  sessionStorage: new SQLiteSessionStorage(DB_PATH),
});

When installing the app it shows the dashboard for a second and then display the error message as There's no page at this address

URL will be like: https://admin.shopify.com/store/restockstoretesting12/apps/eebaaf49180d45a6dfd5906be615d6e6/?hmac=76cc214b26e483c267d4f0a02c95cd03ace160b2eb72a087a5573093b9fea76d&host=YWRtaW4uc2hvcGlmeS5jb20vc3RvcmUvcmVzdG9ja3N0b3JldGVzdGluZzEy&shop=restockstoretesting12.myshopify.com&timestamp=1694672075

@tobi @macournoyer @methodmissing @ericflo

Start with the shopify.js configuration shown in the report, especially the authentication paths and host settings. Reproduce the installation flow and trace the redirect that leads to the reported Shopify error page. Done means a newly installed app reaches its dashboard without showing “There's no page at this address”.