It doesn't work on Amplify

[kyo-jp]

I bought pro and use on Amplify, it doesn't work even if it works local env.
There is no error but the screen is brank.

this is package.json.

{
  "name": "BabyLookProviderAdministrationSystem",
  "version": "1.0.0",
  "title": "BabyLook Provider Administration System",
  "homepage": "https://www.babylook.mom",
  "description": "This is for providers system of BabyLook. You can move to https://www.babylook.mom .",
  "author": {
    "name": "BabyLook",
    "url": "https://babylook.mom"
  },
  "repository": {
    "type": "git",
    "url": "https://github.com/uifort/carolina-react-admin-dashboard-pro"
  },
  "dependencies": {
    "@date-io/date-fns": "1.3.13",
    "@fortawesome/fontawesome-svg-core": "1.2.27",
    "@fortawesome/free-brands-svg-icons": "5.12.1",
    "@fortawesome/free-regular-svg-icons": "5.12.1",
    "@fortawesome/free-solid-svg-icons": "5.12.1",
    "@fortawesome/react-fontawesome": "0.1.8",
    "@material-ui/core": "4.9.2",
    "@material-ui/icons": "4.5.1",
    "@material-ui/lab": "4.0.0-alpha.43",
    "@material-ui/pickers": "3.2.10",
    "apexcharts": "3.15.6",
    "aws-amplify": "^3.3.8",
    "aws-amplify-react": "^4.2.12",
    "chart.js": "2.9.3",
    "clsx": "1.1.0",
    "date-fns": "2.9.0",
    "draft-js": "0.11.4",
    "draftjs-to-html": "0.9.1",
    "framer-motion": "1.8.4",
    "google-map-react": "1.1.6",
    "hamburgers": "1.1.3",
    "html-to-draftjs": "01.5.0",
    "immutability-helper": "3.0.1",
    "leaflet": "1.6.0",
    "material-ui-chip-input": "^2.0.0-beta.2",
    "pe7-icon": "1.0.4",
    "prop-types": "^15.7.2",
    "react": "16.12.0",
    "react-apexcharts": "1.3.6",
    "react-big-calendar": "0.24.0",
    "react-chartjs-2": "2.9.0",
    "react-circle": "1.1.1",
    "react-color": "2.18.0",
    "react-contextmenu": "2.13.0",
    "react-copy-to-clipboard": "5.0.2",
    "react-countup": "4.3.3",
    "react-cropper": "1.3.0",
    "react-dnd": "10.0.2",
    "react-dnd-html5-backend": "10.0.2",
    "react-dom": "16.12.0",
    "react-draft-wysiwyg": "1.14.4",
    "react-dropzone": "10.2.1",
    "react-feather": "2.0.3",
    "react-flag-kit": "0.3.1",
    "react-gauge-chart": "0.2.5",
    "react-images-upload": "^1.2.8",
    "react-infinite-scroll-component": "5.0.4",
    "react-ionicons": "3.1.4",
    "react-joyride": "2.2.1",
    "react-leaflet": "2.6.1",
    "react-material-ui-form-validator": "^2.1.1",
    "react-number-format": "4.3.1",
    "react-perfect-scrollbar": "1.5.8",
    "react-redux": "7.2.0",
    "react-router": "5.1.2",
    "react-router-dom": "5.1.2",
    "react-scripts": "3.4.0",
    "react-slick": "0.25.2",
    "react-sparklines": "1.7.0",
    "react-spinners": "0.8.0",
    "react-text-mask": "5.4.3",
    "react-trend": "1.2.5"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject",
    "format": "./node_modules/.bin/eslint --fix --ignore-path .gitignore ."
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  },
  "devDependencies": {
    "eslint": "6.8.0",
    "eslint-plugin-prettier": "3.1.2",
    "eslint-plugin-react": "7.18.3",
    "eslint-plugin-unused-imports": "0.1.2",
    "node-sass": "4.13.1",
    "prettier": "1.19.1",
    "prettier-eslint": "9.0.1",
    "prettier-eslint-cli": "5.0.0",
    "sass-vars-to-js-loader": "2.1.1"
  }
}

Amplify.xml is below.

version: 1
frontend:
    phases:
        preBuild:
            commands: 
                - nvm install 14.15.0
                - nvm use 14.15.0
                - yarn install
        build:
            commands: 
                - nvm install 14.15.0
                - nvm use 14.15.0
                - node -v
                - yarn run build
    artifacts:
        baseDirectory: public
        files:
            - '**/*'
    cache:
        paths:
            - 'node_modules/**/*'