Hey, sorry for the super late response, i wasnt very active in the last years. The problem is, I really don't know anymore. But the program wasnt that useful anyway, it would only be good for creating new items, which wasn't already used in your project, since it didn't find the references to those items. Luckily I made a new version of this a few days ago and you can find it on on https://aerobiba.itch.io/rpgmt-rpg-maker-mvmz-database-tool-pro
There is currently a giveaway on my discord, if you wan't to join. https://discord.gg/qSCgVyWF