"Make a data store that checks the players data every 5 seconds and saves it while checking the value with a max value of 10 trillion rebirths and max of 10 quadrillion coins and if player values are higher reset their data"

-- server script 
local DataStoreService = game:GetService("DataStoreService")
local playerData = DataStoreService:GetDataStore("PlayerData")
local maxValueRebirths = 10000000000000
local maxValueCoins = 10000000000000000

local function savePlayerData(player)
    local key = "Player_" .. player.UserId
    local data = {
        rebirths = player.leaderstats.Rebirths.Value,
        coins = player.leaderstats.Coins.Value
    }

if data.rebirths > maxValueRebirths or data.coins > maxValueCoins then
        data.rebirths = 0
        data.coins = 0
    end

playerData:SetAsync(key, data)
end

local function loadPlayerData(player)
    local key = "Player_" .. player.UserId
    local data = playerData:GetAsync(key)

if data then
        player.leaderstats.Rebirths.Value = data.rebirths
        player.leaderstats.Coins.Value = data.coins
    end
end

local function onPlayerAdded(player)
    player:WaitForChild("leaderstats")
    loadPlayerData(player)

while true do
        wait(5)
        savePlayerData(player)
    end
end

game.Players.PlayerAdded:Connect(onPlayerAdded)

game.Players.PlayerRemoving:Connect(savePlayerData)