Module parse failed: Unexpected token

[iitsmel]

Hi there 👋, being using this library for various projects, gotta say really love this :) .
I've encountered a problem, but my background knowledge isn't enough so I ask it here.

command I use on terminal

npm run deploy

purpose of that command

I want to run reactjs on GitHub page.

error message

./node_modules/@react-three/fiber/dist/react-three-fiber.esm.js
Module parse failed: Unexpected token (137:43)
You may need an appropriate loader to handle this file type.
|
| const handlers = (_r3f = eventObject.__r3f) == null ? void 0 : _r3f.handlers;
| if (handlers) intersections.push({ ...intersect,
| eventObject
| });

my package dependencies from package.json

"dependencies": {
"@react-three/fiber": "^6.1.5",
"@testing-library/jest-dom": "^5.12.0",
"@testing-library/react": "^11.2.7",
"@testing-library/user-event": "^12.8.3",
"gh-pages": "^3.2.0",
"react": "^17.0.2",
"react-dom": "^17.0.2",
"react-scripts": "^1.1.5",
"three": "^0.128.0",
"web-vitals": "^1.1.2",
"zustand": "^3.5.1"
}

If I missed some info, please let me know. I'll post it afterwards. Thank you :)