Server script fails when port already in use

[enterprisey]

Originally reported elsewhere by @shagungarg0. Stack trace:

Error: listen EADDRINUSE: address already in use :::4444
at Server.setupListenHandle [as _listen2] (node:net:1334:16)
at listenInCluster (node:net:1382:12)
at Server.listen (node:net:1469:7)
at Object. (C:\Users\Shagun Garg\Desktop\git-demo\git-project\afch-rewrite\server.js:86:4)
at Module._compile (node:internal/modules/cjs/loader:1101:14)
at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)
at Module.load (node:internal/modules/cjs/loader:981:32)
at Function.Module._load (node:internal/modules/cjs/loader:822:12)
at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
at node:internal/main/run_main_module:17:47
Emitted 'error' event on Server instance at:
at emitErrorNT (node:net:1361:8)
at processTicksAndRejections (node:internal/process/task_queues:83:21) {
code: 'EADDRINUSE',
errno: -4091,
syscall: 'listen',
address: '::',
port: 4444