What could be the root cause of my syntax error when parsing in my node file?

Recently, I have been working on a small full-stack application with React as my front end and Node as my back end. In my server, I am using an endpoint with a get request to pull my data from the database, which is in sqlite. It was working properly until I started re-migrating (rollback/latest) the columns into my database. I could retrieve my seed data from Insomnia using the get request. Eventually, I added new columns and it started throwing this error below.
‘SyntaxError: Expected property name or ‘}’ in JSON at position 8
at JSON.parse ()’
So I rebuilt the entire project, tried it on similar projects, and still no dice. My migrations and seed files ran perfectly fine. In my server file, I have some middleware with server.use(express.json());. I know this is one of the roots of my problem but I am not sure how to go about troubleshooting this. I have tried to reinstall packages and Node. Any suggestions/tips?
My server file code for reference:

const express = require('express');
const cors = require('cors');
const helmet = require('helmet');

// const testData = require('../testData'); 
const db = require('./dbConfig');

const server = express();

/*middleware*/
server.use(express.json());
server.use(cors()); 
server.use(helmet()); 

/*middleware*/
/*endpoints*/
server.get("https://stackoverflow.com/", (req,res) => (
    res.send('Good luck lol')
));

server.get('/orderforms', async (req,res) => {
    //GET all orderforms

    // res.json(testData);
    console.log("RECEIVED GET REQUEST");
    try {
    const orderforms = await db('orderforms');

    res.status(200).json(orderforms);
  } catch (err) {
    res.status(500).json({ message: 'Internal Server Error.', error: err.message, stack: err.stack });
  }
});

server.post('/orderforms', (req,res) => {
    //Post an orderform
});

server.put('/orderforms/:id', (req,res) => {
    //Put an orderform
});

server.delete('/orderforms/:id', (req,res) => {
    //Delete an orderform
});

module.exports = server; //exports the server

I tried to remove the parser, which worked, but I need that to automatically parse the data. I had backtracked my steps and even rebuilt the entire project on the backend. When I tested the get request using a testData file it still threw the same exact error because of the express.json() middleware.