Не работает /do не знаю почему

Как исправить..?
1 
local PREFIX = {Color(255, 178, 75), "[/do] "}
timer.Simple( 30, function()
    DarkRP.addPhrase('en', 'do')
    DarkRP.removeChatCommand("do")

     local function PlayerNonRpChat(ply, args)
        if args == "" then
            DarkRP.notify(ply, 1, 4, DarkRP.getPhrase("invalid_x", "argument", ""))
            return ""
        end
        local DoSay = function(text)
            if text == "" then
                DarkRP.notify(ply, 1, 4, DarkRP.getPhrase("invalid_x", "argument", ""))
                return
            end
            DarkRP.talkToRange(ply, PREFIX, text, ply:Nick(), 250)
        end
        return args, DoSay
    end

    DarkRP.declareChatCommand{
        command = "do",
        description = "Advertise something to everyone in the server.",
        delay = 1.5
     }

    if SERVER then
        DarkRP.defineChatCommand("do", PlayerNonRpChat, 1.5)
    end
end)