Newbie - log file is empty

I am a new comer to AppDaemon. AD is run as an addon in Home Assistant.

Grateful if anyone can tell me why the log file is empty.

appdaemon.yaml

logs:
  main_log:
    filaname: /config/appdaemon/logs/main.log
  access_log:
    filaname: /config/appdaemon/logs/access.log
  error_log:
    filaname: /config/appdaemon/logs/error.log
  diag_log:
    filaname: /config/appdaemon/logs/diag.log

I created the directory
I created the files
But the four log files are always empty.

The UI log is not empty though:

[00:44:07] INFO: Starting AppDaemon...
s6-rc: info: service legacy-services successfully started
2023-05-26 00:44:10.453741 INFO AppDaemon: AppDaemon Version 4.4.2 starting
2023-05-26 00:44:10.454486 INFO AppDaemon: Python version is 3.11.3
2023-05-26 00:44:10.454853 INFO AppDaemon: Configuration read from: /config/appdaemon/appdaemon.yaml
2023-05-26 00:44:10.455179 INFO AppDaemon: Added log: AppDaemon
2023-05-26 00:44:10.455544 INFO AppDaemon: Added log: Error
2023-05-26 00:44:10.455882 INFO AppDaemon: Added log: Access
2023-05-26 00:44:10.456187 INFO AppDaemon: Added log: Diag

Thanks in advance!