Custom 404 page for multilingual page

Hi,

I have a website with to languages.

The root site domain.com (norwegian), and the english site url is /en.

The 404 error page for the main url is working fine, but /en is not. I have created .php template for the english page in at the base of Home folder structure called "errors"

The site structure

Main site URL

Errors (Path: /errors)

- 404 (Path: /errors/404)

English URL

Home

- Errors (Path: /en/errors)

-- 404 (Path: /en/errors/404)

Do I have to create a URL pattern for the /en part, or edit a file?

Thank you in advance