서버가 제대로 종료되지 않아서 생기는 에러
Error: listen EADDRINUSE: address already in use 127.0.0.1:5000 at Server.setupListenHandle [as _listen2] (node:net:1311:16) at listenInCluster (node:net:1359:12) at GetAddrInfoReqWrap.doListen [as callback] (node:net:1497:7) at GetAddrInfoReqWrap.onlookup [as oncomplete] (node:dns:71:8)