Strange, I thought for sure I replied to this. I'm running DB 2.3.4 downloaded Jan 30, 2019 which appears to be the current version. Queryobj.php is version 2.17. Has there been an update since then? I dumped my install, downloaded again and reinstalled, ran again and still the same error. The queryobj.php file in this project didn't appear to be replaced when I re-ran the script though. It's the 2.17 and has a modified date of Feb 8, 2019.