Freebsd issue?

[wpmaster]

I have a Freebsd machine running Cuberite

It runs fine without major problems

but I am stuck making Lua plugins because using ForEachEntity function and relavant callbackfunction gives me segfault error

Please help me

function GetIf(Name)
    -- Check if unique mob matching name exist
    cRoot:Get():ForEachWorld(
        function (w)
        LOG("fetching from " .. w:GetName())
            w:ForEachEntity(
              function (e)
                    if not(e:IsMob()) then
                        return true
                    else
                        return true
                    end
                end
            )
        end
    )
end