Help with ModuleScripts. Two different errors?

16:30:51.061 - Module code did not return exactly one value 16:30:51.063 - Requested module experienced an error while loading

Where I require the scripts:

role = require(table.remove(roles, math.random(#roles)))

One of my roles (they are all the same):

local Role = require(game.ServerScriptService.Roles.defRole)()

Role.ID = "Cop";
Role.Ability = "Investigate one player per night.";
Role.Attributes = "Vote for one player at night. The next day you get a hint of the player's role."
Role.Alignment = "town";
Role.Meetings = {"inves", "lynch"};
Role.Items = {}

return Role

The defRole:

return function()
    local Role = {
    ID = "";
    Ability = "";
    Attributes = "";
    Alignment = "";
    Meeting = {};
    Items = {}
    }

    Role.canKill = function(gameObject, target, reason)
        return true
    end

    Role.onKill = function(gameObject, target, reason)
        Role.defaultOnKill(gameObject, target, reason)
    end

    Role.defaultOnKill = function(gameObject, target, reason)
        local char = target.Character
        if char then
            char:BreakJoints()
            wait(5)
            char:Destroy()
        end
    end


    return Role
end

Not sure why this is happening, if anyone has any input I would be highly appreciative.