npm start 에러입니다

안녕하세요 제로초님 root 에서 npm start시 아래와 같은 에러메시지가 출력됩니다 ㅠ 

internal/modules/cjs/loader.js:1122
  return process.dlopen(module, path.toNamespacedPath(filename));
                 ^

Error: /home/ubuntu/React-NodeBird/prepare/back/node_modules/bcrypt/lib/binding/napi-v3/bcrypt_lib.node: invalid ELF header
    at Object.Module._extensions..node (internal/modules/cjs/loader.js:1122:18)
    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> (/home/ubuntu/React-NodeBird/prepare/back/node_modules/bcrypt/bcrypt.js:6:16)
    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)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! react-nodebird-back@1.0.0 start: `node app`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the react-nodebird-back@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!     /root/.npm/_logs/2021-02-01T14_27_23_119Z-debug.log