npm start가 안됩니다

npm start 하니 이런 오류가 뜹니다. 

어떻게 해결해야할지 알려주세요 

감사합니다. 

터미널 오류를 복사붙여넣기 하자면 이렇습니다. 

> react-boiler-plate@1.0.0 start /Users/kimhyesu/Downloads/boilerplate-mern-stack-master

> node server/index.js

/Users/kimhyesu/Downloads/boilerplate-mern-stack-master/server/routes/video.js:16

  upload(req, res, err ) => {

  ^^^^^^^^^^^^^^^^^^^^^

SyntaxError: Malformed arrow function parameter list

    at wrapSafe (internal/modules/cjs/loader.js:979:16)

    at Module._compile (internal/modules/cjs/loader.js:1027:27)

    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)

    at Module.load (internal/modules/cjs/loader.js:928:32)

    at Function.Module._load (internal/modules/cjs/loader.js:769:14)

    at Module.require (internal/modules/cjs/loader.js:952:19)

    at require (internal/modules/cjs/helpers.js:88:18)

    at Object.<anonymous> (/Users/kimhyesu/Downloads/boilerplate-mern-stack-master/server/index.js:37:23)

    at Module._compile (internal/modules/cjs/loader.js:1063:30)

    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)

    at Module.load (internal/modules/cjs/loader.js:928:32)

    at Function.Module._load (internal/modules/cjs/loader.js:769:14)

    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12)

    at internal/main/run_main_module.js:17:47

npm ERR! code ELIFECYCLE

npm ERR! errno 1

npm ERR! react-boiler-plate@1.0.0 start: `node server/index.js`

npm ERR! Exit status 1

npm ERR! 

npm ERR! Failed at the react-boiler-plate@1.0.0 start script.

npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:

npm ERR!     /Users/kimhyesu/.npm/_logs/2021-04-16T07_59_10_322Z-debug.log