How to assign subdomain to docker compose application?

Error Error: child exited with code 18
    at ChildProcess.<anonymous> (file:///app/dist/server.mjs:1:49388)
    at ChildProcess.emit (node:events:517:28)
    at maybeClose (node:internal/child_process:1098:16)
    at ChildProcess._handle.onexit (node:internal/child_process:303:5)
    at Process.callbackTrampoline (node:internal/async_hooks:128:17) {
  code: 18,
  stderr: BufferListStream {
    _bufs: [
      <Buffer 74 69 6d 65 3d 22 32 30 32 34 2d 30 36 2d 32 31 54 31 32 3a 33 37 3a 33 32 5a 22 20 6c 65 76 65 6c 3d 77 61 72 6e 69 6e 67 20 6d 73 67 3d 22 2f 65 74 ... 94 more bytes>,
...