Unhandled Usermessage Problem.

[MisterFoxx]

I got this code from someone and i keep getting a usermessage error. Here is the code:
serverside
[lua]
AddCSLuaFile("client/cl_debuff.lua")

local CONFIG_NMSPEED = 240
local CONFIG_NRSPEED = 160
local CONFIG_MSPEED = CONFIG_NMSPEED/2
local CONFIG_RSPEED = CONFIG_NRSPEED/2

hook.Add("PlayerDeath","co2_debuff+redscreen",function(p)
if p:IsSuperAdmin() then return true end

p.co2_debuff = true
p:SetNWBool("g_redscreen",true)
umsg.Start("g_redscreen",p);
umsg.Bool(true);
umsg.End();

end)

hook.Add("PlayerSpawn","co2_debuff&redscreen",function(p)
if p.co2_debuff and not p:IsSuperAdmin() then
p.co2_debuffat = CurTime()+60
timer.Simple(0.1,function()
if IsValid(p) then
p:SetWalkSpeed(CONFIG_MSPEED)
p:SetRunSpeed(CONFIG_RSPEED)
p:StripWeapons()
p:ChatPrint("You've turned into a ghost.")
end
end)

timer.Simple(60,function()
if IsValid(p) and p.co2_debuffat <= CurTime() then
p.co2_debuff = false
p:SetWalkSpeed(CONFIG_NMSPEED)
p:SetRunSpeed(CONFIG_NRSPEED)
p:Spawn()
p:ChatPrint("You are no longer a ghost.")
umsg.Start("g_redscreen",p);
umsg.Bool(false);
umsg.End();
end
end)
end
end)

hook.Add("PlayerCanPickupItem","co2_debuff_pickup",function(p)
if p.g_debuff then return false end
end)

hook.Add("PlayerCanPickupWeapon","co2_debuff_pickup",function(p)
if p.g_debuff then return false end
end)
[/lua]
and then client side
[lua]
if CLIENT then
LOLREDSCREEN = true

usermessage.Hook("g_redscreen",function( um )
LOLREDSCREEN = um:ReadBool()
end)

hook.Add("HUDPaint","g_debuff",function()
if LOLREDSCREEN then
surface.SetDrawColor(255,0,0,100)
surface.DrawRect(0,0,ScrW(),ScrH())
end
end)
end
[/lua]
Please Help! I would like to have my server up by tonight.

[SeveredSkull]

doesn't look broken to me... Where are you putting these files, and are they included properly?