version: difficultraids-1.3-beta,
case: entering any new/old save always show datapack issue, I see debug.txt and it shows missing gurad villager mod, so I add it, then I can enter saves, but there is a bug in guard villager mod which you can duplicate your items and enchant them for free, so I don't want to add it.

Can you send me a log where you enter a save without the mod vs when you enter with the mod?

Can confirm, it doesn't let me play my worlds

I believe I've fixed this (v1.3.1), let me know if the issue still persists.

Yeaa, it works properly now