sip server log file to trouble shoot failed message request

Sorry to send this as I am sure there is a previous post with the answer.
I making sending a request to the sip server which is running 8.5 PSDK libraries and
I am receiving an EventError indicating an attribute is set incorrectly.

I am trying to locate the log file on the server side that might provide additional information.
The Genesys server is a DEMOSRV. I am not that familiar with logging configuration on the server
side so it could be that I need to view the configuration and/or change it to determine the location.
If so, please let me know how to do so.

Thanks