I installed the latest version of EFM 1.16.5 on my minecraft, saw enough guides on how to add custom weapons to a file, but going into the config files I was slightly surprised, since I don't have any custom weapons or custom monsters, reinstalled the modification, tried later versions, the problem is the same, maybe who knows how to solve?
[default_gamerule]
doVanillaAttack = true
keepSkills = false
hasFallAnimation = true
disapleEntityUI = false
#Range: 0 ~ 100
weightPenalty = 100
[loot]
skill_book_mob_loot = true
skill_book_chest_loot = true
That's all what i have in my config file