Snowpack - React - Vercel or GH_Pages - Blank page in production version

[kulothunganug]

Hi guys,
I am using snowpack to bundle my simple website
When I am trying to deploy the app on github pages I got a blank page (this also occurs on vercel)

The website link: https://kulothungan16.github.io/
The repository link: https://github.com/Kulothungan16/kulothungan16.github.io

At first deploy I got the below error from the website

404
File not found

The site configured at this address does not contain the requested file.

after I changed the branch to gh-pages by going to Settings > Pages > Source > Branch
then I got the page but it's blank can someone help me 🙏

I found these two errors in console

Failed to load resource: the server responded with /_snowpack/pkg/react.js:1 a status of 404 ()

Failed to load resource: the server responded with /_snowpack/pkg/react-dom.js:1 a status of 404 ()

P.S. Looks like only the index.css loaded, not *.js