How to resolve this kind of error?

Sir,i am getting this error in my vs code terminal, How to resolve this kind of error?

node:events:346
throw er; // Unhandled ‘error’ event
^

Error: listen EADDRINUSE: address already in use :::4444
at Server.setupListenHandle [as _listen2] (node:net:1311:16)
at listenInCluster (node:net:1359:12)
at Server.listen (node:net:1446:7)
at Function.listen (D:\WEB DEVELOPMENT\my_sql_basics\sql_with_express\node_modules\express\lib\application.js:618:24)
at Object. (D:\WEB DEVELOPMENT\my_sql_basics\sql_with_express\server.js:15:5)
at Module._compile (node:internal/modules/cjs/loader:1092:14)
at Object.Module._extensions…js (node:internal/modules/cjs/loader:1121:10)
at Function.Module._load (node:internal/modules/cjs/loader:813:14)
at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:76:12)
Emitted ‘error’ event on Server instance at:
at emitErrorNT (node:net:1338:8)
at processTicksAndRejections (node:internal/process/task_queues:81:21) {
code: ‘EADDRINUSE’,
errno: -4091,
syscall: ‘listen’,
port: 4444
}