If I am looking at the correct GitHub location:
https://github.com/scottcwilson/OLD_zen_DropShipPO where files of the same name as described here in this thread, the file of the same name as reported as an issue doesn't have direct database calls (e.g. mysql_query) and instead uses $db type queries. It also identifies a specific forum thread.
It appears that if the files at that location were used, that at least the current issue(s) would be resolved. To download those files, click the big green button on the right side and download as a zip or other type file. Then read through the instructions for installation.
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