Problems with my models on my server.

[Magafe]

Well. I add models to my server but they never work. I put them on fastdl, they are under my models folder and I have the MDL file on the model.

ITEM.Name = 'Dark Kahn'
ITEM.Price = 5000
ITEM.Model = 'mkvsdcu/dark_kahn/slow_pub.mdl'

function ITEM:OnEquip(ply, modifications)
	if not ply._OldModel then
		ply._OldModel = ply:GetModel()
	end
	
	timer.Simple(1, function() ply:SetModel(self.Model) end)
end

function ITEM:OnHolster(ply)
	if ply._OldModel then
		ply:SetModel(ply._OldModel)
	end
end

function ITEM:PlayerSetModel(ply)
	ply:SetModel(self.Model)
end

A code that doesnt work for models.

ITEM.Name = 'Kleiner'
ITEM.Price = 250
ITEM.Model = 'models/player/kleiner.mdl'

function ITEM:OnEquip(ply, modifications)
	if not ply._OldModel then
		ply._OldModel = ply:GetModel()
	end
	
	timer.Simple(1, function() ply:SetModel(self.Model) end)
end

function ITEM:OnHolster(ply)
	if ply._OldModel then
		ply:SetModel(ply._OldModel)
	end
end

function ITEM:PlayerSetModel(ply)
	ply:SetModel(self.Model)
end

one that does work