Log in as admin user Make sure site statistics are enabled (here is the docs page ) Download and run the attached script "generate_stats.php" which will create some duplicate log entries to ensure that timeend matches (which is what causes this issue) Run cron to generate the stats (if it doesn't immediately work you may have to try a few of the troubleshooting things from the docs page and maybe check the admin setting for when cron stats should start (see admin/settings.php?section=stats) and ensure your system clock is after that date) View the stats_user_daily table in the database and ensure there are entries that have duplicate "timeend" values. Take note of the course id and user id. View the log report (site admin > reports > logs) Click on the user that corresponds to the user id from the status table (no big deal if you don't know, since you can just change the query params if needed) You should be on the user's course profile page, so click on "statistics". You may need to adjust the id and course URL params to match the ones you noted from status_user_daily table Confirm that you don't see the error "Did you remember to make the first column something unique in your call to get_records"