[custom] page in Root folder

[Valnexus]

Hi, so I have a [id].js page in /pages/ of my next app, everytime some access the site: www.example.com/4532 , i check the id via "query" in address and make a SSR request to get data for this page, but then I do test of speed and the default Lighthouse test from google I get error on my server like this:

{ id: 'asset-manifest.json' }
TypeError: Cannot read property '0' of null
at Object.module.exports.x+Ix.PageId.getInitialProps (/Users/Valnexus/Desktop/example/.next/server/pages/[id].js:3806:159)
....
{ id: 'bootstrap-grid.min.css.map' }
TypeError: Cannot read property '0' of null
at Object.module.exports.x+Ix.Obituary.getInitialProps (/Users/Valnexus/Desktop/example/.next/server/pages/[id].js:3806:159)
...

It was the same error before showing another "manifest" file, so I created that one, now it's showing 'asset-manifest.json' , 'bootstrap-grid.min.css.map' in the Query of ID, and I am making the test on HOMEPAGE like the "/" address.

I even tried doing it /pages/[id]/index.js - still dose the same result.

I think it's because it's a [custom] page in the root folder, is there another way of doing it?