Logs not working

Hi All,

Loggers are not working for my project. PFA screenshot of startup logs. I am on version 12.6.14. Can you pls suggest what is the issue here?

Thanks
Rahul

I found solution myself. This step was missing[1]

[1] https://documentation.bloomreach.com/12/library/upgrade-minor-versions/upgrade-12.6.10-to-12.6.11.html