Preciso de uma ajuda

https://github.com/WesleySoeiro/ProjetoBD

Estou tentando fazer conexão pelo Postgres, mas sempre dá um erro.

Já mudei a porta, conferi que a porta não está em uso, no link segue o projeto, e meu .env está assim:

PORT=3000;
DB_CONNECTION_STRING='postgres://meu_user:minha_senha%4010@localhost:5432/ProjetoBD'

sendo o simbolo %4010 para representar um @.

segue o erro:

Server is running on port 3000
[nodemon] restarting due to changes...
[nodemon] starting `node server.js`
node:events:497
      throw er; // Unhandled 'error' event
      ^

Error: listen EACCES: permission denied 3000;
    at Server.setupListenHandle [as _listen2] (node:net:1882:21)
    at listenInCluster (node:net:1961:12)
    at Server.listen (node:net:2080:5)
    at Function.listen (C:\Users\wesle\OneDrive\Área de Trabalho\Projeto DB\Projeto\node_modules\express\lib\application.js:635:24)
    at Object.<anonymous> (C:\Users\wesle\OneDrive\Área de Trabalho\Projeto DB\Projeto\server.js:5:5)
    at Module._compile (node:internal/modules/cjs/loader:1469:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1548:10)
    at Module.load (node:internal/modules/cjs/loader:1288:32)
    at Module._load (node:internal/modules/cjs/loader:1104:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:174:12)
Emitted 'error' event on Server instance at:
    at emitErrorNT (node:net:1940:8)
    at process.processTicksAndRejections (node:internal/process/task_queues:82:21) {
  code: 'EACCES',
  errno: -4092,
  syscall: 'listen',
  address: '3000;',
  port: -1
}

Node.js v20.18.0
[nodemon] app crashed - waiting for file changes before starting...