Publishing is failing and the administrator needs to enable Publisher debugging.

The Tridion Sites MMC is available so it can be used to configure Publisher debugging as outlined in KB article below.
For Web 8.5, how to enable Publisher debugging?

Also, the configuration file change to enable Publisher debug can be done as discussed in documentation link below.
https://docs.sdl.com/LiveContent/content/en-US/SDL%20Tridion%20Sites-v2/GUID-4E960CDE-5466-4713-BD7A-C8E76578DB77
As noted, modify the file TcmPublisher.exe.config in the %TRIDION_HOME%/bin folder of the CM or outscaled Publisher server and edit so this line is uncommented.

<add name="Tridion CM Publisher Log File" />

Then restart the Publisher service.  A TcmPublisher.log file will be written to the %TRIDION_HOME%/log directory.