What is Debug mode and where is it enabled? Debug does the following things: Displays errors on the screen if they occur Logs errors to /cache/debug_logs/error_log.php Shows a number of stats in your footer: Number of database queries Page load time Memory usage PHP version MySQL version Hotaru CMS version Allows developers to log results to a file Debug can be turned on by setting DEBUG to "true" in Admin -> Settings Error logging Regardless of whether Debug is enabled, Hotaru will try to log PHP errors and warnings to the error_log.php file in your cache folder. You can view that log in your browser from Admin -> Maintenance -> Debug. You'll notice you can also delete debug files from that same page. It's a good idea to clear the logs every now and again, especially if they grow large. If it exceeds 500KB, Hotaru will automatically delete it. IMPORTANT: When copying and pasting error messages into the forums from your site or error logs, please remove any sensitive information about your server and website.