Error help

[Jvesche]

Im on darkrp 2.5.1 and i have an arrest stick it worked fine then all of a sudden i started to get this error and now it doesnt show up that you have it when i have it put in the jobs

[ERROR] gamemodes/darkrp/entities/weapons/arrest_stick/shared.lua:47: attempt to call method 'NewSetWeaponHoldType' (a nil value)
1. unknown - gamemodes/darkrp/entities/weapons/arrest_stick/shared.lua:47

[lua]
if SERVER then
AddCSLuaFile("shared.lua")
end

if CLIENT then
SWEP.PrintName = "Arrest Baton"
SWEP.Slot = 1
SWEP.SlotPos = 3
SWEP.DrawAmmo = false
SWEP.DrawCrosshair = false
end

SWEP.Base = "weapon_cs_base2"

SWEP.Author = "DarkRP Developers"
SWEP.Instructions = "Left click to arrest\nRight click to switch batons"
SWEP.Contact = ""
SWEP.Purpose = ""
SWEP.IconLetter = ""

SWEP.ViewModelFOV = 62
SWEP.ViewModelFlip = false
SWEP.AnimPrefix = "stunstick"

SWEP.Spawnable = true
SWEP.AdminOnly = true
SWEP.Category = "DarkRP (Utility)"

SWEP.NextStrike = 0

SWEP.ViewModel = Model("models/weapons/v_stunbaton.mdl")
SWEP.WorldModel = Model("models/weapons/w_stunbaton.mdl")

SWEP.Sound = Sound("weapons/stunstick/stunstick_swing1.wav")

SWEP.Primary.ClipSize = -1
SWEP.Primary.DefaultClip = 0
SWEP.Primary.Automatic = false
SWEP.Primary.Ammo = ""

SWEP.Secondary.ClipSize = -1
SWEP.Secondary.DefaultClip = 0
SWEP.Secondary.Automatic = false
SWEP.Secondary.Ammo = ""

function SWEP:Initialize()
self:NewSetWeaponHoldType("normal")
end

function SWEP:Deploy()
if SERVER then
--self:SetColor(Color(255,0,0,255))
--self:SetMaterial("models/shiny")
local vm = self.Owner:GetViewModel()
if not IsValid(vm) then return end
vm:ResetSequence(vm:LookupSequence("idle01"))
end
return true
end

function SWEP:PreDrawViewModel()
if SERVER or not IsValid(self.Owner) or not IsValid(self.Owner:GetViewModel()) then return end
--self.Owner:GetViewModel():SetColor(Color(255,0,0,255))
--self.Owner:GetViewModel():SetMaterial("models/shiny")
end

function SWEP:Holster()
if SERVER then
--self:SetColor(Color(255,255,255,255))
--self:SetMaterial("")
timer.Stop(self:GetClass() .. "_idle" .. self:EntIndex())
elseif CLIENT and IsValid(self.Owner) and IsValid(self.Owner:GetViewModel()) then
--self.Owner:GetViewModel():SetColor(Color(255,255,255,255))
--self.Owner:GetViewModel():SetMaterial("")
end
return true
end

function SWEP:OnRemove()
if SERVER then
--self:SetColor(Color(255,255,255,255))
--self:SetMaterial("")
timer.Stop(self:GetClass() .. "_idle" .. self:EntIndex())
elseif CLIENT and IsValid(self.Owner) and IsValid(self.Owner:GetViewModel()) then
--self.Owner:GetViewModel():SetColor(Color(255,255,255,255))
--self.Owner:GetViewModel():SetMaterial("")
end
end

function SWEP:PrimaryAttack()
if CurTime() < self.NextStrike then return end

self:NewSetWeaponHoldType("melee")
timer.Simple(0.3, function() if self:IsValid() then self:NewSetWeaponHoldType("normal") end end)

self.NextStrike = CurTime() + 0.51 -- Actual delay is set later.

if CLIENT then return end

timer.Stop(self:GetClass() .. "_idle" .. self:EntIndex())
local vm = self.Owner:GetViewModel()
if IsValid(vm) then
vm:ResetSequence(vm:LookupSequence("idle01"))
timer.Simple(0, function()
if not IsValid(self) or not IsValid(self.Owner) or not IsValid(self.Owner:GetActiveWeapon()) or self.Owner:GetActiveWeapon() ~= self then return end
self.Owner:SetAnimation(PLAYER_ATTACK1)

if IsValid(self.Weapon) then
self.Weapon:EmitSound(self.Sound)
end

local vm = self.Owner:GetViewModel()
if not IsValid(vm) then return end
vm:ResetSequence(vm:LookupSequence("attackch"))
vm:SetPlaybackRate(1 + 1/3)
local duration = vm:SequenceDuration() / vm:GetPlaybackRate()
timer.Create(self:GetClass() .. "_idle" .. self:EntIndex(), duration, 1, function()
if not IsValid(self) or not IsValid(self.Owner) then return end
local vm = self.Owner:GetViewModel()
if not IsValid(vm) then return end
vm:ResetSequence(vm:LookupSequence("idle01"))
end)
self.NextStrike = CurTime() + duration
end)
end

local trace = util.QuickTrace(self.Owner:EyePos(), self.Owner:GetAimVector() * 90, {self.Owner})
if IsValid(trace.Entity) and trace.Entity.onArrestStickUsed then
trace.Entity:onArrestStickUsed(self.Owner)
return
end

local ent = self.Owner:getEyeSightHitEntity(nil, nil, function(p) return p ~= self.Owner and p:IsPlayer() and p:Alive() end)

if not IsValid(ent) or (self.Owner:EyePos():Distance(ent:GetPos()) > 90) or (not ent:IsPlayer() and not ent:IsNPC()) then
return
end

if IsValid(ent) and ent:IsPlayer() and ent:isCP() and not GAMEMODE.Config.cpcanarrestcp then
DarkRP.notify(self.Owner, 1, 5, DarkRP.getPhrase("cant_arrest_other_cp"))
return
end

if ent:GetClass() == "prop_ragdoll" then
for k,v in pairs(player.GetAll()) do
if ent.OwnerINT and ent.OwnerINT == v:EntIndex() and GAMEMODE.KnockoutToggle then
DarkRP.toggleSleep(v, true)
return
end
end
end

if not GAMEMODE.Config.npcarrest and ent:IsNPC() then
return
end

if GAMEMODE.Config.needwantedforarrest and not ent:IsNPC() and not ent:getDarkRPVar("wanted") then
DarkRP.notify(self.Owner, 1, 5, DarkRP.getPhrase("must_be_wanted_for_arrest"))
return
end

if FAdmin and ent:IsPlayer() and ent:FAdmin_GetGlobal("fadmin_jailed") then
DarkRP.notify(self.Owner, 1, 5, DarkRP.getPhrase("cant_arrest_fadmin_jailed"))
return
end

local jpc = DarkRP.jailPosCount()

if not jpc or jpc == 0 then
DarkRP.notify(self.Owner, 1, 4, DarkRP.getPhrase("cant_arrest_no_jail_pos"))
else
-- Send NPCs to Jail
if ent:IsNPC() then
ent:SetPos(DarkRP.retrieveJailPos())
else
if not ent.Babygod then
ent:arrest(nil, self.Owner)
DarkRP.notify(ent, 0, 20, DarkRP.getPhrase("youre_arrested_by", self.Owner:Nick()))

if self.Owner.SteamName then
DarkRP.log(self.Owner:Nick().." ("..self.Owner:SteamID()..") arrested "..ent:Nick(), Color(0, 255, 255))
end
else
DarkRP.notify(self.Owner, 1, 4, DarkRP.getPhrase("cant_arrest_spawning_players"))
end
end
end
end

function SWEP:SecondaryAttack()
self.Weapon:SetNextSecondaryFire(CurTime() + 1)

local EyeTrace = self.Owner:GetEyeTrace();

if CLIENT then return false; end

//renable this if you want limited range
--local Distance = self.Owner:EyePos():Distance(EyeTrace.HitPos);
--if Distance > 75 then return false; end
if !EyeTrace.Entity or !EyeTrace.Entity:IsValid() or !EyeTrace.Entity:IsPlayer() then return false; end
EyeTrace.Entity:wanted(self.Owner, "Quick Wanted")

end
[/lua]

any help on why its not working would be great thanks