Need help creating SWEP with custom model

[Friedeggnchips]

So ill make this quick. There was a SWEP that was causing my game to crash, to fix it, I made a SWEP and placed the model name inside of the code. the problem comes when i use it in Gmod, the model is there but there is no texture for it. can anyone help? This is the .lua if you need it.

if SERVER then
  AddCSLuaFile( "shared.lua" )

resource.AddFile("models/newriotshield/riotshield/ballisticshield_mod.mdl")
resource.AddFile("models/newriotshield/riotshield/ballisticshield_mod.dx80.vtx")
resource.AddFile("models/newriotshield/riotshield/ballisticshield_mod.dx90.vtx")
resource.AddFile("models/newriotshield/riotshield/ballisticshield_mod.phy")
resource.AddFile("models/newriotshield/riotshield/ballisticshield_mod.sw.vtx")
resource.AddFile("models/newriotshield/riotshield/ballisticshield_mod.vvd")
resource.AddFile("materials/newriotshield/riotshield/ballshield.vmt")
resource.AddFile("materials/newriotshield/riotshield/ballshield.vtf")
resource.AddFile("materials/newriotshield/riotshield/ballshield_n.vtf")
resource.AddFile("materials/newriotshield/riotshield/riotshield.vmt")
resource.AddFile("materials/newriotshield/riotshield/riotshield.vtf")
resource.AddFile("materials/newriotshield/riotshield/riotshield_mod.vmt")
resource.AddFile("materials/newriotshield/riotshield/riotshield_mod.vtf")
resource.AddFile("materials/newriotshield/riotshield/riotshield_mod_n.vtf")
resource.AddFile("materials/newriotshield/riotshield/shieldglass.vmt")
resource.AddFile("materials/newriotshield/riotshield/shieldglass.vtf")
resource.AddFile("materials/newriotshield/riotshield/shieldglass_dudv.vtf")
resource.AddFile("materials/newriotshield/riotshield/shieldglass_dx60.vmt")
end

if (CLIENT) then
SWEP.PrintName = "Riot Shield"
SWEP.Category = "Riot shield"
SWEP.Slot = 3
SWEP.SlotPos = 1
SWEP.DrawAmmo = false
SWEP.DrawCrosshair = false
SWEP.Author = "Friedeggnchips"
SWEP.Contact = "Dont"
SWEP.Purpose = "For blocking bullets etc"
end

SWEP.HoldType = "crossbow"
SWEP.Spawnable = true
SWEP.AdminSpawnable = true

SWEP.UseHands = true
SWEP.ViewModelFOV = 62
SWEP.ViewModelFlip = false
SWEP.AnimPrefix = "crossbow"
SWEP.Primary.Damage         = 0
SWEP.Primary.ClipSize       = -1
SWEP.Primary.DefaultClip    = -1
SWEP.Primary.Automatic      = true
SWEP.Primary.Delay = 1.1
SWEP.Primary.Ammo       = "none"

SWEP.Primary.ClipSize  = -1
SWEP.Primary.DefaultClip = 1
SWEP.Primary.Automatic  = true
SWEP.Primary.Ammo = "none"

SWEP.Secondary.ClipSize = -1
SWEP.Secondary.DefaultClip = 1
SWEP.Secondary.Automatic = false
SWEP.Secondary.Ammo = "none"

SWEP.WorldModel = "models/newriotshield/riotshield/ballisticshield_mod.mdl"
SWEP.ViewModel = ""

function SWEP:Deploy()
if SERVER then
if IsValid(self.ent) then return end
self:SetNoDraw(true)
self.ent = ents.Create("prop_physics")
self.ent:SetModel("models/newriotshield/riotshield/ballisticshield_mod.mdl")
self.ent:SetPos(self.Owner:GetPos() + Vector(10,0,15) + (self.Owner:GetForward()*25))
ent:SetAngles((ply:GetAimVector()*-1):Angle())
self.ent:SetParent(self.Owner)
self.ent:Fire("SetParentAttachmentMaintainOffset", "eyes", 0.01)
self.ent:SetCollisionGroup( COLLISION_GROUP_WORLD )
self.ent:Spawn()
self.ent:Activate()
end
return true
end

function SWEP:PrimaryAttack()

end

function SWEP:Holster()
if SERVER then
if not IsValid(self.ent) then return end
self.ent:Remove()
end
return true
end

function SWEP:OnDrop()
if SERVER then
self:SetColor(Color(255,255,255,255))
if not IsValid(self.ent) then return end
self.ent:Remove()
end
end

function SWEP:OnRemove()
if SERVER then
self:SetColor(Color(255,255,255,255))
if not IsValid(self.ent) then return end
self.ent:Remove()
end
end

Thanks for the help.