제대로 되는거 맞나요?

영상 순서대로 npm install 두번하고 dev.js 만들고 몽고디비 연결해주고 visual 터미널에서 npm run dev하니깐 localhost://3000으로 뜨더니! 로그인도 안했는데 오른쪽 navbar에 logout 만 있어더라구요?? 그리고 터미널 창 보니깐 

밑에 처럼 떠서... 그리고 logout 버튼도 안눌리고.. 음 로그인 회원가입도 안되는거 같던데.. 도와주세요 ㅠㅠ

PS C:\Users\shin1\OneDrive\바탕 화면\boilerplate-mern-stack-master> npm run dev

> react-boiler-plate@1.0.0 dev C:\Users\shin1\OneDrive\바탕 화면\boilerplate-mern-stack-master

> concurrently "npm run backend" "npm run start --prefix client"

[0] 

[0] > react-boiler-plate@1.0.0 backend C:\Users\shin1\OneDrive\바탕 화면\boilerplate-mern-stack-master

[0] > nodemon server/index.js

[0] 

[1] 

[1] > client@0.1.0 start C:\Users\shin1\OneDrive\바탕 화면\boilerplate-mern-stack-master\client       

[1] > react-scripts start

[1]

[0] [nodemon] 1.19.4

[0] [nodemon] to restart at any time, enter `rs`

[0] [nodemon] watching dir(s): *.*

[0] [nodemon] watching extensions: js,mjs,json

[0] [nodemon] starting `node server/index.js`

[0] (node:18440) Warning: Accessing non-existent property 'count' of module exports inside circular dependency

[0] (Use `node --trace-warnings ...` to show where the warning was created)

[0] Server Listening on 5000

[0] (node:18440) Warning: Accessing non-existent property 'findOne' of module exports inside circular dependency

[0] (node:18440) Warning: Accessing non-existent property 'remove' of module exports inside circular dependency

[0] (node:18440) Warning: Accessing non-existent property 'updateOne' of module exports inside circular dependency

[1] [HPM] Proxy created: /  -> http://localhost:5000

[1] i ｢wds｣: Project is running at http://172.30.1.13/

[1] i ｢wds｣: webpack output is served from

[1] i ｢wds｣: Content not from webpack is served from C:\Users\shin1\OneDrive\바탕 화면\boilerplate-mern-stack-master\client\public

[1] i ｢wds｣: 404s will fallback to /

[1] Starting the development server...

[1]

[1] Browserslist: caniuse-lite is outdated. Please run:

[1] npx browserslist@latest --update-db

[1] Compiled with warnings.

[1]

[1] ./src/components/views/LoginPage/LoginPage.js

[1]   Line 74:11:  'dirty' is assigned a value but never used        no-unused-vars

[1]   Line 79:11:  'handleReset' is assigned a value but never used  no-unused-vars

[1]

[1] ./src/components/views/RegisterPage/RegisterPage.js

[1]   Line 92:11:  'dirty' is assigned a value but never used        no-unused-vars

[1]   Line 97:11:  'handleReset' is assigned a value but never used  no-unused-vars

[1]

[1] Search for the keywords to learn more about each warning.

[1] To ignore, add // eslint-disable-next-line to the line before.

[1]

[0] MongooseError [MongooseServerSelectionError]: connection <monitor> to 34.202.38.84:27017 closed

[0]     at new MongooseServerSelectionError (C:\Users\shin1\OneDrive\바탕 화면\boilerplate-mern-stack-master\node_modules\mongoose\lib\error\serverSelection.js:22:11)

[0]     at NativeConnection.Connection.openUri (C:\Users\shin1\OneDrive\바탕 화면\boilerplate-mern-stack-master\node_modules\mongoose\lib\connection.js:823:32)

[0]     at Mongoose.connect (C:\Users\shin1\OneDrive\바탕 화면\boilerplate-mern-stack-master\node_modules\mongoose\lib\index.js:333:15)

[0]     at Object.<anonymous> (C:\Users\shin1\OneDrive\바탕 화면\boilerplate-mern-stack-master\server\index.js:18:26)

[0]     at Module._compile (internal/modules/cjs/loader.js:1063:30)

[0]     at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)

[0]     at Module.load (internal/modules/cjs/loader.js:928:32)

[0]     at Function.Module._load (internal/modules/cjs/loader.js:769:14)

[0]     at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12)

[0]     at internal/main/run_main_module.js:17:47 {

[0]   reason: TopologyDescription {

[0]     type: 'ReplicaSetNoPrimary',

[0]     setName: null,

[0]     maxSetVersion: null,

[0]     maxElectionId: null,

[0]     servers: Map(3) {

[0]       'youtubeclone-shard-00-01.nvpjz.mongodb.net:27017' => [ServerDescription],

[0]       'youtubeclone-shard-00-02.nvpjz.mongodb.net:27017' => [ServerDescription],

[0]       'youtubeclone-shard-00-00.nvpjz.mongodb.net:27017' => [ServerDescription]

[0]     },

[0]     stale: false,

[0]     compatible: true,

[0]     compatibilityError: null,

[0]     logicalSessionTimeoutMinutes: null,

[0]     heartbeatFrequencyMS: 10000,

[0]     localThresholdMS: 15,

[0]     commonWireVersion: null

[0]   },

[0]   [Symbol(mongoErrorContextSymbol)]: {}

[0] }