Hello, every time I try to build my app, I get the following message:

$ next build --debug
   ▲ Next.js 15.2.1

   Creating an optimized production build ...
 ✓ Compiled successfully
 ✓ Linting and checking validity of types
 ✓ Collecting page data
 ⚠ metadataBase property in metadata export is not set for resolving social open graph or twitter images, using "http://localhost:3000". See https://nextjs.org/docs/app/api-reference/functions/generate-metadata#metadatabase
 ✓ Generating static pages (12/12)

> Build error occurred
TypeError: Expected a non-empty string
    at Array.map (<anonymous>)
error: script "build" exited with code 1

However, there's no file/line reference where the error is occuring. I have went through all my .map() functions, commented them out and ran the build again but it still doesn't work. I had this issue before and it was because I was passing an image URL instead of a local image, however I tried to pass a local image too but it still doesn't work. Any ideas?