Axios 404 error finding /api/private when not authenticating at root director

I was following a tutorial to create a user authentication – a user dashboard page is hidden and appears if the user is logged in. It works perfectly fine at the / directory but not if I change the / directory to /dashboard, even if I update all instances of "/" to "/dashboard".

Here’s my Axios code for authenticating if the user is logged in; the problem arises in /api/private, where I get a 404 error GET http://localhost:3000/api/private 404 (Not Found) ONLY when the directory for the user’s dashboard is NOT at "/".

  const fetchPrivateDate = async () => {
      const config = {
        headers: {
          "Content-Type": "application/json",
          Authorization: `Bearer ${localStorage.getItem("authToken")}`,
        },
      };

      try {
        const { data } = await axios.get("/api/private", config);
        setPrivateData(data.data);
      } catch (error) {
        localStorage.removeItem("authToken");
        console.log(error);
        setError("Error");
      }
    };

    fetchPrivateDate();
  }, []);

Here is the server node.js code:

app.get("/dashboard", (req, res, next) => {
  res.send("Operational");
});

app.use("/api/auth", require("./routes/auth"));
app.use("/api/private", require("./routes/private"));

I believe the /auth path works; login and signup work completely fine, it’s just that once the user logs in the dashboard it catches an error because it can’t find api/private.

Here is routes/private aka api/private:

const express = require("express");
const router = express.Router();
const { getPrivateRoute } = require("../controllers/private");
const { protect } = require("../middleware/auth");

router.route("/dashboard").get(protect, getPrivateRoute);

module.exports = router;

I looked at plenty of other posts, such as this one: Method Post with Axios giving Error 404. ReactJS but none of the changes, such as updating the axios.get to include localhost:3000 works at all. For reference, this is the tutorial I followed: https://www.youtube.com/watch?v=YocRq-KesCM&list=LL. I’ve tried several solutions online and nothing seems to work. Any help would be greatly appreciated.