Bad gateway error

[pickaxe828]

I was using https://web.deta.sh/studio to code
And when I go to the website
It returns a bad gateway error

Code

import express from "express"
import { Deta } from "deta"

const deta = Deta("project key") // Replaced to real key in my code
const db = deta.Base("visits")
const app = express()

app.get("/", (req, res) => {
    res.send("Welcome to the backend of Pickaxe's F3 project!")
})

// export "app"
module.exports = app

package.json

{
    "type": "module",
    "dependencies": {
        "deta": "^1.1.0",
        "express": "^4.18.1"
    }
}

[pickaxe828]

Update: The problem is fixed by changing the import to require and remove "type": "module"