When activating it or opening a map it says:

"A Mod caused an error [ModException]

Details:
System.IndexOutOfRangeException: Array index is out of range.
at OptionsMainPanel.AddUserMods () [0x00000] in <filename unknown>:0"

And also, when in the countent manager, instead of the mod's name it shows "689937287" which is the Steam Workshop ID of this mod (in the link to this mod)