npm start

> supermarket-finder@1.0.0 start
> node server.js

(node:77996) [MODULE_TYPELESS_PACKAGE_JSON] Warning: Module type of file:///C:/Users/.../Documents/.../pivat/test.creative-crafter.de/tools/supermarket-finder/server.js is not specified and it doesn't parse as CommonJS.
Reparsing as ES module because module syntax was detected. This incurs a performance overhead.
To eliminate this warning, add "type": "module" to C:\Users\...\Documents\...\pivat\test.creative-crafter.de\tools\supermarket-finder\package.json.
(Use `node --trace-warnings ...` to show where the warning was created)
node:events:497
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRINUSE: address already in use :::3000
    at Server.setupListenHandle [as _listen2] (node:net:1940:16)
    at listenInCluster (node:net:1997:12)
    at Server.listen (node:net:2102:7)
    at Function.listen (C:\Users\...\Documents\...\pivat\test.creative-crafter.de\tools\supermarket-finder\node_modules\express\lib\application.js:635:24)
    at file:///C:/Users/.../Documents/.../pivat/test.creative-crafter.de/tools/supermarket-finder/server.js:87:5
    at ModuleJob.run (node:internal/modules/esm/module_job:345:25)
    at async onImport.tracePromise.__proto__ (node:internal/modules/esm/loader:651:26)
    at async asyncRunEntryPointWithESMLoader (node:internal/modules/run_main:117:5)
Emitted 'error' event on Server instance at:
    at emitErrorNT (node:net:1976:8)
    at process.processTicksAndRejections (node:internal/process/task_queues:90:21) {
  code: 'EADDRINUSE',
  errno: -4091,
  syscall: 'listen',
  address: '::',
  port: 3000
}

Node.js v22.19.0