Error SyntaxError: Unexpected token T in JSON at position 0

I am using Nextjs 13.4 and mongo. I get the following error when I attempt to access the database with a query.:

    typeerror SyntaxError: Unexpected token T in JSON at position 0 
    at GET (webpack-internal:///(sc_server)/./app/api/loadteachers/route.js:19:33)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async eval (webpack-internal:///(sc_server)/./node_modules/next/dist/server/future/route-modules/app-route/module.js:242:37)

Here are my files:
route.js

//Fetches the teachers  from database.
import {MongoClient} from 'mongodb';

export async function GET()
{
   
        console.log("😃 dbConnect executed.......");
        const client = await MongoClient.connect(process.env.MONGODB_CONNECTION_STRING);
        const db = await client.db("WDN2");   
        const teachers = await db.collection('Teachers')
        .find()
        .sort({_id: -1})
        .toArray();     
        
        //res.status(200).json({text: teachers});
        //console.log("From api route: ", teachers);
        //const data = await res.json();

        const data = await teachers.json();
        client.close();
       
        //return new Response(teachers)
        return data
}

Table.jsx

type//load teachers into the table.
"use client";
//import dbConnect from "../../../utils/dbConnect";

async function getStudents(){
    console.log("Get students working ........");
    const res = await fetch("http://localhost:3000//api/loadteachers");
    return res.json();
}

export default async function Table()
//const Table = ()=>
{
   //Call api here.
    //const dbConnectfunc = await dbConnect();
   //console.log("hello this is the table component.");
   //console.log(dbConnectfunc); 
    const data = await getStudents();
    console.log(data);
    return(
        <div >
            <table className="table ">
                <thead>
                    <tr>
                        <th scope="col">#</th>
                        <th scope="col">Date</th>
                        <th scope="col"> First Name</th>
                        <th scope="col"> Last Name</th>
                        <th scope = "col"> Email </th>
                        <th scope = "col"> Classes</th>
                        <th scope = "col"> Students </th>
                        <th scope = "col"> Remove</th>
                    </tr>
                </thead>
                <tbody>
                    <tr>
                        <th scope="row">1</th>
                        <td>5/17/22</td>
                        <td> megan</td>
                        <td> jones</td>
                        <td>mj@gmail.com </td>
                        <td> 4</td>
                        <td> 120 </td>
                        <td> Remove</td>
                    </tr>
                </tbody>
            </table>
        </div>        
   )  
} 

Here is the folder structure:
app
— components
---- Table.jsx
— api
---- loadteachers
---- route.js

Not sure what else to do here.

Is your collection name Teachers or teachers?

It’s ‘Teachers’.