How to stop create-react-app correctly?

Question

npm

Hello, I ran the create-react-app my-app + npm start command.
The site opened in localhost:3000
closed the tab with this page
launched another app via npm start
asked that port 3000 is busy
decided to close it
google gave this option

{
  "name": "alga-react",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "jquery": "^3.3.1",
    "react": "^16.7.0",
    "react-dom": "^16.7.0",
    "react-html-id": "^0.1.5",
    "react-html-parser": "^2.0.2",
    "react-router-dom": "^4.3.1",
    "react-scripts": "2.1.3",
    "react-slick": "^0.23.2",
    "slick-carousel": "^1.8.1"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject",
    "stop": "taskkill -F -IM node.exe"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": [
    ">0.2%",
    "not dead",
    "not ie <= 11",
    "not op_mini all"
  ]
}

"stop": "taskkill -F -IM node.exe" ran
npm stop
now I can't install components via npm install nameOfComponent
here is the error log:

0 info it worked if it ends with ok
1 verbose cli [ 'C:\\Program Files\\nodejs\\node.exe',
1 verbose cli   'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli   'install',
1 verbose cli   'jquery' ]
2 info using [email protected]
3 info using [email protected]
4 verbose npm-session 8907af06ae674f82
5 silly install loadCurrentTree
6 silly install readLocalPackageData
7 timing stage:rollbackFailedOptional Completed in 2ms
8 timing stage:runTopLevelLifecycles Completed in 2712ms
9 verbose stack Error: Failed to parse json
9 verbose stack Unexpected token } in JSON at position 404 while parsing near '...t-scripts eject",
9 verbose stack   },
9 verbose stack   "eslintConfig":...'
9 verbose stack     at parseError (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:452:11)
9 verbose stack     at parseJson (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:104:26)
9 verbose stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:51:5
9 verbose stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\graceful-fs\graceful-fs.js:78:16
9 verbose stack     at FSReqWrap.readFileAfterClose [as oncomplete] (internal/fs/read_file_context.js:53:3)
10 verbose cwd D:\Вёрстка\React\alga-react-1.0.1
11 verbose Windows_NT 6.1.7601
12 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "jquery"
13 verbose node v10.15.1
14 verbose npm  v6.4.1
15 error file D:\Вёрстка\React\alga-react-1.0.1\package.json
16 error code EJSONPARSE
17 error JSON.parse Failed to parse json
17 error JSON.parse Unexpected token } in JSON at position 404 while parsing near '...t-scripts eject",
17 error JSON.parse   },
17 error JSON.parse   "eslintConfig":...'
18 error JSON.parse Failed to parse package.json data.
18 error JSON.parse package.json must be actual JSON, not just JavaScript.
19 verbose exit [ 1, true ]

How to fix?