TypeError: fetch failed

[artem-zinnatullin]

We got an error in Post step

Error: TypeError: fetch failed
Error: TypeError [ERR_INVALID_ARG_TYPE]: The "data" argument must be of type string or an instance of Buffer, TypedArray, or DataView. Received undefined
node:internal/deps/undici/undici:15845
      Error.captureStackTrace(err);
            ^

TypeError: fetch failed
    at node:internal/deps/undici/undici:15845:13
    at process.processTicksAndRejections (node:internal/process/task_queues:103:5)
    at async index (/home/ubuntu/_work/_actions/dev-hato/actions-workflow-metrics/44bffcdf2878b7fd0d46fcdaedfae7fb40dee5d4/src/post/index.ts:72:29)
    at async <anonymous> (/home/ubuntu/_work/_actions/dev-hato/actions-workflow-metrics/44bffcdf2878b7fd0d46fcdaedfae7fb40dee5d4/src/post/index.ts:90:1) {
  [cause]: AggregateError [ECONNREFUSED]:
      at internalConnectMultiple (node:net:1134:18)
      at afterConnectMultiple (node:net:1715:7) {
    code: 'ECONNREFUSED',
    [errors]: [
      Error: connect ECONNREFUSED ::1:7777
          at createConnectionError (node:net:1678:14)
          at afterConnectMultiple (node:net:1708:16) {
        errno: -111,
        code: 'ECONNREFUSED',
        syscall: 'connect',
        address: '::1',
        port: 7777
      },
      Error: connect ECONNREFUSED 127.0.0.1:7777
          at createConnectionError (node:net:1678:14)
          at afterConnectMultiple (node:net:1708:16) {
        errno: -111,
        code: 'ECONNREFUSED',
        syscall: 'connect',
        address: '127.0.0.1',
        port: 7777
      }
    ]
  }
}

Node.js v24.11.1

Version 44bffcd

[massongit]

I want to investigate the root cause.
Therefore, could you please provide the URL of this error log?
Otherwise, could you please tell me the steps to reproduce the error?