Good morning, I'm telling you my problem to see if you can help me.

I am making an application that connects to a database on another server and I have created the api/letreros/route.ts folder in my app folder where I make the connection and query my database. in my server component when I do the fetch ami api I get a 404 error when I deploy to vercel, but in my local it works wonderfully, I have tried everything and set the correct environment variables, and set the IP to the server of database that they asked me for, I don't know what else to do. please help me 😥