Astro Not Working on Vercel

import { defineConfig } from "astro/config";
import tailwind from "@astrojs/tailwind";
import react from "@astrojs/react";
import image from "@astrojs/image";

// https://astro.build/config
import vercel from "@astrojs/vercel/serverless";

export default defineConfig({
  integrations: [
    tailwind(),
    react(),
    image({
      serviceEntryPoint: "@astrojs/image/sharp",
    }),
  ],
  output: "server",
  adapter: vercel(),
});