[SOLVED] Currency isn't saving after purchase. Can someone help?

So i have a button and when you click it it changes a value to something else. When i rejoin the game the value is the same as it was before but if i change the value through developer console it does save. Please help!

here is the server script inside the button:

local Player = script.Parent.Parent.Parent.Parent.Parent.Parent
local LS = Player:FindFirstChild("leaderstats")
local Button = script.Parent
local Image = script.Parent.Parent
local CharVal = Player:WaitForChild("CharacterValues"):WaitForChild("Jessica")

Button.MouseButton1Click:Connect(function()
    if CharVal.Value == 1 then
        script.Parent.Equip.Disabled = false
        LS.Character.Value = "Jessica"
        Button.Text = "Equipped"

        wait(3)
        script.Parent.Equip.Disabled = true
    elseif CharVal.Value == 0 then
        script.Parent.Purchase.Disabled = false
        CharVal.Value = 1
        LS.Character.Value = "Jessica"
        Button.Text = "Equipped"
        LS.Bucks.Value = LS.Bucks.Value - 300

        wait(3)
        script.Parent.Purchase.Disabled = true
    end
end)