Database에 자료 저장하는법,,,

istening on 8080
저장완료
TypeError: Cannot read properties of undefined (reading 'title')
at /Users/ejmoni/Desktop/ejproject/코딩애플-리액트장인/todoapp/server.js:42:53
at Layer.handle [as handle_request] (/Users/ejmoni/Desktop/ejproject/코딩애플-리액트장인/todoapp/node_modules/express/lib/router/layer.js:95:5)
at next (/Users/ejmoni/Desktop/ejproject/코딩애플-리액트장인/todoapp/node_modules/express/lib/router/route.js:144:13)
at Route.dispatch (/Users/ejmoni/Desktop/ejproject/코딩애플-리액트장인/todoapp/node_modules/express/lib/router/route.js:114:3)
at Layer.handle [as handle_request] (/Users/ejmoni/Desktop/ejproject/코딩애플-리액트장인/todoapp/node_modules/express/lib/router/layer.js:95:5)
at /Users/ejmoni/Desktop/ejproject/코딩애플-리액트장인/todoapp/node_modules/express/lib/router/index.js:284:15
at Function.process_params (/Users/ejmoni/Desktop/ejproject/코딩애플-리액트장인/todoapp/node_modules/express/lib/router/index.js:346:12)
at next (/Users/ejmoni/Desktop/ejproject/코딩애플-리액트장인/todoapp/node_modules/express/lib/router/index.js:280:10)
at expressInit (/Users/ejmoni/Desktop/ejproject/코딩애플-리액트장인/todoapp/node_modules/express/lib/middleware/init.js:40:5)
at Layer.handle [as handle_request] (/Users/ejmoni/Desktop/ejproject/코딩애플-리액트장인/todoapp/node_modules/express/lib/router/layer.js:95:5)

type 에러 원인을 못찾겠습니다,,

locallost에서는 잘넘어가는거 같지만,, 몽고db에 데이터도 안올라가요ㅜㅜ