I'm currently working on fixing a resource library issue. I don't know if that is related to your error, but better off testing this again after I'm done with it.
Resources didn't fix the issue.
I *did*, however, figure out what was causing it and I'm surprised it's not afflicted anyone else (they either haven't noticed or didn't read the built-in commands). Like most know there's the default groupings of items and you can create your own, like avatarites, geodes, etc.
Including currency. Within currency the 10,000 Byne Bill is listed and it causes massive issues with the addon. And the runtime error only happens on characters you log in with that have lot/pass rules for currency. Viertel is the WHM mule and Achtel was a Dynamis/Salvage mule -- she has no issues but he *does* and you can see the split in his pass rules: 10, is the very first item and 9 lines down you can see the 000 Byne Bill.
Just removing those two lines fixes the issues, and I imagine it's because of the comma in the item's name.