new news everytime remove by server start

[Aisuko]

I'd like to ask a simple question, why everytime remove the file I create under _site/news/folder-name/index.html, if I do not create this file, when I add new items to news I always get not found

Not Found

`/news/playstation5/' not found.
WEBrick/1.7.0 (Ruby/2.7.3/2021-04-05) at localhost:4000

                    
^Cvscode ➜ /workspace/blog (dev ✗) $ bundle exec jekyll serve
Configuration file: /workspace/blog/_config.yml
            Source: /workspace/blog
       Destination: /workspace/blog/_site
 Incremental build: disabled. Enable with --incremental
      Generating... 
         AutoPages: Disabled/Not configured in site.config.
        Pagination: Complete, processed 1 pagination page(s)
                    done in 0.359 seconds.
 Auto-regeneration: enabled for '/workspace/blog'
    Server address: http://127.0.0.1:4000
  Server running... press ctrl-c to stop.
[2021-05-03 10:53:43] ERROR `/news/playstation5/' not found.