Client Side package.json

package.json

{
  "name": "mern-stack-client",
  "version": "0.1.0",
  "private": true,
  "proxy": "https://memories-project-part4.herokuapp.com/",
  "dependencies": {
    "@material-ui/core": "^4.9.10",
    "@material-ui/icons": "^4.9.1",
    "@material-ui/lab": "^4.0.0-alpha.58",
    "@testing-library/jest-dom": "^4.2.4",
    "@testing-library/react": "^9.3.2",
    "@testing-library/user-event": "^7.1.2",
    "axios": "^0.19.2",
    "jwt-decode": "^3.1.2",
    "material-ui-chip-input": "^1.1.0",
    "moment": "^2.27.0",
    "react": "^16.12.0",
    "react-dom": "^16.12.0",
    "react-file-base64": "^1.0.3",
    "react-google-login": "^5.1.25",
    "react-redux": "^7.1.3",
    "react-router-dom": "^5.2.0",
    "react-scripts": "3.4.1",
    "redux": "^4.0.5",
    "redux-thunk": "^2.3.0"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "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": {
    "@redux-devtools/core": "^3.9.0",
    "@redux-devtools/dock-monitor": "^1.4.0",
    "@redux-devtools/log-monitor": "^2.3.0",
    "eslint-config-airbnb": "^18.2.1",
    "eslint-plugin-import": "^2.22.1",
    "eslint-plugin-jsx-a11y": "^6.4.1",
    "eslint-plugin-react": "^7.21.5",
    "eslint-plugin-react-hooks": "^4.2.0"
  }
}

when i try in install packages, I getting this error