this is my realtime-database

.

I dont know how i can get the child value on profile. In this case i use reactjs and firebase.

const Database = () => {
  const [data, setData] = useState({});

  useEffect(() => {
    fire.child("Profil").on("value", (snapshot) => {
      if (snapshot.val() !== null) {
        setData({ ...snapshot.val() });
      } else {
        setData({});
      }
    });
    return () => {
      setData({});
    };
  }, []);
  return (
        <tbody>
          {Object.keys(data).map((id, index) => {
            return (
              <tr>
                <th scope="row">{index + 1}</th>
                <td>{data[id].email}</td>
        
              </tr>
            );
          })}
        </tbody>
export default Database;