This exact situation happened to me back before I knew how to segregate my own libraries properly from the system Perl. Broke a bunch of websites and took me a week to sort out because I barely knew what I was doing and I had to reinstall hundreds of modules I hadn’t bothered to track.

This is potentially the kind of thing you could fix easily with a little good advice from the monks. I posit, however, that it is probably something that is extremely difficult to do with what amounts to a game of charades/Pictionary with you relaying partial information you don’t understand or know how to find to those trying to guess what it means or what you could try next. So, I would say, it might be best to post it as a job on https://jobs.perl.org/ and screen candidates carefully before giving anyone permission/credentials to your site. This is probably a short/easy job for a good Perl hacker.