Log files - trakt/Plex-Trakt-Scrobbler GitHub Wiki

https://support.plex.tv/hc/en-us/articles/201106148-Channel-Log-Files

/var/lib/plexmediaserver/Library/Application Support/Plex Media Server/Logs/PMS Plugin Logs/com.plexapp.plugins.trakttv.log

/usr/local/plexdata/Plex Media Server/Logs/PMS Plugin Logs/com.plexapp.plugins.trakttv.log

${JAIL_ROOT}/var/db/plexdata/Plex Media Server/Logs/PMS Plugin Logs/com.plexapp.plugins.trakttv.log

~/Library/Logs/Plex Media Server/PMS Plugin Logs/com.plexapp.plugins.trakttv.log

%LOCALAPPDATA%\Plex Media Server\Logs\PMS Plugin Logs\com.plexapp.plugins.trakttv.log

Enabling debug logging is very helpful when reporting issues, this can be enabled with the following steps:

1. Open settings in Plex/Web (at Channels -> trakt -> Settings)
2. Change the Logging - Plugin and Logging - Libraries options to DEBUG
3. Save settings

Note: If you are reporting an issue you will need to reproduce the issue again after changing the Logging options, if you are unable to reproduce the issue easily feel free to post the issue anyway (identifying the problem might be a bit more difficult though).