en | Options | Logging - kee-org/KeeFox GitHub Wiki
To aid solving any problems that you encounter, you can enable KeeFox logging.
KeeFox will not log your usernames, passwords or other form-based data but the URLs of pages you visit may be recorded. Logs can be written to a variety of destinations, one destination is a file in this location:
[user profile directory]\keefox\log.txt
Find your user profile directory
To enable logging, go to the "Logging" tab in the KeeFox options dialog.
See also: Sensitive logging
And for KeePassRPC logging and debugging: https://github.com/luckyrat/KeeFox/wiki/en-%7C-Troubleshooting#debug-the-problem