ModError: Failed to load and run script

[Lemente]

Hello, I have been trying to install that mod, but best case scenario I get this error : ModError: Failed to load and run script from C:\Users\Lem\Desktop\minetest-5.1.0-win64\bin\..\mods\dfcaverns-master\df_caverns\init.lua: ...win64\bin\..\mods\dfcaverns-master\df_caverns/level1.lua:284: attempt to call field 'register_layer' (a nil value) stack traceback: ...win64\bin\..\mods\dfcaverns-master\df_caverns/level1.lua:284: in main chunk [C]: in function 'dofile' ...0-win64\bin\..\mods\dfcaverns-master\df_caverns\init.lua:11: in main chunk

I am using Minetest 5.1.0 on windows 10, and the MTG. I have the dependencies (tried with them in the modpack, or in the mod folder).

I have no idea what else I could try. Can you help me?