The location of the Silhouette log file varies by operating system.
Windows: C:\Users\<user>\AppData\Local\BorisFX\Silhouette <version>\
Mac: ~/Library/Logs/BorisFX/Silhouette <version>/
Linux: ~/.cache/BorisFX/Silhouette <version>/
The following log files are available:
analytics.txt
silhouette.log
silhouette_plugin.log
Customer support may ask you to supply these logs if you file a support ticket.