Why won't this Server script change the value?

There are no errors shown and i don't have any idea how to fix this script. Everything is where should it be, so it's not because of the objects.

local RepStorage = game:GetService("ReplicatedStorage")
local Remote = RepStorage:WaitForChild("Remote")
local LocalRemote = Remote:WaitForChild("GunSeller")

LocalRemote.OnServerEvent:connect(function(player, gunvalue, price)

	local gun = RepStorage.Data_Stores.SavedGuns:FindFirstChild(player.Name):WaitForChild(gunvalue).Value
	local givemoney = RepStorage.Data_Stores.Currency:FindFirstChild(player.Name):WaitForChild("Money").Value

	gun = gun - 1 -- Doesn't Change
	givemoney = givemoney + price -- Doesn't Change

	
end)