My ReactJS module page component is not rendering for some reason - reactjs

Question

On my react application, the module page component is not rendering, this is the error is receive when I load the component. In this component, I am trying to read data from the firebase real time database and then display it on the page.
Uncaught ReferenceError: initialize is not defined
I also get this error as well
Uncaught Error: ModulePage(...): Nothing was returned from render. This usually means a return statement is missing. Or, to render nothing, return null.
The following is my code for the module page component
import Header from './header.js';
import Footer from './footer.js'
import './review_index.css';
import { Card, Button } from "react-bootstrap";
import React, {useEffect, initialize} from 'react';
import { useNavigate} from "react-router-dom";
import {realtimeDB, auth } from '../firebase-config';
import { ref, onValue } from 'firebase/database';
import { useAuthState } from 'react-firebase-hooks/auth';
function ModulePage(){
let navigate = useNavigate();
//if statement that checks if the page is being accessed by the user
const [user] = useAuthState(auth);
if(!user){
navigate("/");
}
//function to get the data
const getData = () => {
const data = ref(realtimeDB, 'Modules')
onValue(data, (snapshot) => {
return(
<>
<Header />
<h1>Welcome to the module page</h1>
<p> on this page, yopu will see the modules that you can currently upload reviews on</p>
<Card className="module_card">
<h2>Module list</h2>
<p>{snapshot.val()}</p>
<Button className="moduleselection" onClick={navigate("/ModuleReviewForm")}> </Button>
</Card>
<div className="moduleselection"></div>
<Footer />
</>
);
})
}
initialize = true
useEffect(() => {
getData();
}, [initialize])
}
export default ModulePage;
I really need help on this, any advice will be much appreciated.

Answer 1

You have this import:
import React, {useEffect, initialize} from 'react';
And initialize does not exist in the React library, remove this one import and declare initialize as a variable on your code.