"create a daily reward system using buttons that says claim. give instruction on how to set up."

-- local script inside the Claim button 
local button = script.Parent
local player = game:GetService("Players").LocalPlayer
local datastore = game:GetService("DataStoreService"):GetDataStore("DailyRewards")

local function claimReward()
    local success, err = pcall(function()
        local lastClaimed = datastore:GetAsync(player.UserId .. "-LastClaimed")
        local currentDate = os.date("*t", os.time())
        
        if lastClaimed then
            if currentDate.yday == lastClaimed.yday and currentDate.year == lastClaimed.year then
                button.Text = "Already Claimed"
                return
            end
        end
        
        player.leaderstats.Currency.Value = player.leaderstats.Currency.Value + 100
        datastore:SetAsync(player.UserId .. "-LastClaimed", currentDate)
        button.Text = "Claimed"
    end)
    
    if not success then
        warn("Error claiming daily reward:", err)
    end
end

button.MouseButton1Click:Connect(claimReward)

Instructions:
1. Create a ScreenGui within the StarterGui.
2. Add a TextButton inside the ScreenGui and name it "Claim".
3. Add a LocalScript inside the TextButton.
4. Copy the code above into the LocalScript.
5. Make sure you have a Currency value inside the player's leaderstats folder.
6. Now, when the player clicks the "Claim" button, they will receive a daily reward of 100 Currency. The button will update to show if the reward has already been claimed for the day.