아예 몽고DB에 연결한다고만 하고 연결이 안되고 있습니다.

> npm run dev 

> react-boiler-plate@1.0.0 dev
> concurrently "npm run backend" "npm run start --prefix client"

[1] 
[1] > client@0.1.0 start
[1] > react-scripts start
[1] 
[0]
[0] > react-boiler-plate@1.0.0 backend
[0] > nodemon server/index.js
[0]
[1] 'react-scripts'��(��) ���� �Ǵ� �ܺ� ����, ������ �� �ִ� ���α׷�, �Ǵ�
[1] ��ġ ������ �ƴմϴ�.
[1] npm run start --prefix client exited with code 1
[0] [nodemon] 2.0.22
[0] [nodemon] to restart at any time, enter `rs`
[0] [nodemon] watching path(s): *.*
[0] [nodemon] watching extensions: js,mjs,json
[0] [nodemon] starting `node server/index.js`
[0] Server Listening on 5000
[0] (node:9644) [DEP0170] DeprecationWarning: The URL mongodb://hwangjyoung27:tf933725@ac-xjv9w4y-shard-00-02.gefw08m.mongodb.net:27017,ac-xjv9w4y-shard-00-00.gefw08m.mongodb.net:27017,ac-xjv9w4y-shard-00-01.gefw08m.mongodb.net:27017/?authSource=admin&replicaSet=atlas-9r8jq0-shard-0&retryWrites=true&w=majority&ssl=true is invalid. Future versions of Node.js will throw an error.
[0] (Use `node --trace-deprecation ...` to show where the warning was created)
[0] MongoDB Connected...