Hi, I'm having trouble with deploying my Astro project with Middleware to Vercel.

My middleware works locally but doesn't run when deployed to Vercel. I suspect the problem is Vercel not running the middleware.mjs file, but I am left completely clueless on what to do to fix this.

I've been looking everywhere, checking Astro GitHub issues for solutions or updates on some related discussions I'd found, but I couldn't find any.

If it's important to take into a count, this is my npx astro info:

Astro                    v4.8.6
Node                     v20.12.1
System                   Windows (x64)
Package Manager          npm
Output                   server
Adapter                  @astrojs/vercel/serverless
Integrations             @astrojs/tailwind
                         astro:db
                         @astrojs/db/file-url
                         @astrojs/react
                         astro-auth

I'll leave a list of things I've tested to no success to fix my issue:

List of things I've tried:
- Looked for web console errors in the Console section --> found none.

- Looked into theNetwork section, found I get the error with Status 500 when accessing /api/ endpoints (e.g '/api/signup.ts', '/api/github.ts'). The embedded screenshot is in spanish but I think it's still readable and understandable.

- Looked up my middleware.ts code, checked any possible errors --> found none, the code was copy pasted from Lucia-auth docs.

What I'm trying to accomplish is to keep testing my project while deployed in Vercel but I get stuck in this loop I can't get out of and I can't seem to find any information that could help me out.

Any kind of help would be very much appreciated,
Thanks in advance