node js express server postgres 500 internal server error - node.js

Question

My api has stopped working, previously it worked fine and as far as i am aware I have changed nothing. When i tested my endpoint i received an internal server error.
Here is a link to my hosted api https://frozen-scrubland-34339.herokuapp.com/api
I have just checked some of my other apis and none are working either, same message. it appears my code isnt the issue but postgres itself?
Any help on what to do would be appreciated
When i tried to npm run prod to re-push it to heroku i received: 'Error: The server does not support SSL connections'
Again this was never an issue previously when it worked.
I imagine i have changed something with heroku itself by accident?
app.js
const express = require("express");
const app = express();
const apiRouter = require("./routers/api-router");
const cors = require("cors");
const {
handle404s,
handlePSQLErrors,
handleCustomError,
} = require("./controllers/errorHandling");
app.use(cors());
app.use(express.json());
app.use("/api", apiRouter);
app.use("*", handle404s);
app.use(handlePSQLErrors);
app.use(handleCustomError);
module.exports = app;
connection.js
const { DB_URL } = process.env;
const ENV = process.env.NODE_ENV || "development";
const baseConfig = {
client: "pg",
migrations: {
directory: "./db/migrations",
},
seeds: {
directory: "./db/seeds",
},
};
const customConfigs = {
development: { connection: { database: "away_days" } },
test: { connection: { database: "away_days_test" } },
production: {
connection: {
connectionString: DB_URL,
ssl: {
rejectUnauthorized: false,
},
},
},
};
module.exports = { ...baseConfig, ...customConfigs[ENV] };