Hi everyone! I'm doing a project for school in which I'm using NextJS to create an app. I have some api calls on a backend, and I saw this Vercel tutorial https://www.youtube.com/watch?v=yLMODEUPJdU on how to setup a Serverless Function. But I'm a bit lost on how to actually run it. Can anyone help me? Thanks! This is my current file structure for the backend. I ran vercel on the terminal and created a project on Vercel linked to it.

Deploying a backend on Vercel (APIs and Functions)
Vercel
I already have the project deployed, but when I go on to test the api using ThunderClient, it returns this

Can anyone help me? Thanks!
This is the project url: beauty-backend-jade.vercel.app