Using version 1.12.0 under Ubuntu 24.10, I configured a new project with doxywizard following the docs.
Clicking on “Run doxygen” (now enabled) it just output:

*** Failed to run doxygen

without any further explanation.
But running doxygen myconfig.file previously saved leads to correctly generate the documentation.

How to understand why it fails?

I tried to look for log files under /var/log but I found nothing related to doxygen. Serching inside /var/log/syslog leads to a couple of matches but not relevant.
I also searched in the issues on GitHub repository but without luck.