There is this very annoying glitch and bug in my game thats so annoying ddddddddddddddd?

Theres this damn bug that makes it so even if u dont meet the exp requirements it always levels u up for no damn reason can u please help me? Script:

script.Parent.Died.Event:Connect(function() wait (0.5)
for _, v in pairs(game.Players:GetChildren()) do

local Multiplier = v.Multiplier
if v.leaderstats.Exp.Value >= Multiplier.Value then


script.LvlUpSound:Play() 

local Bill = game.ServerStorage.BillboardGui
Bill.TextLabel.Text = "Level up"
local ClonedBill = Bill:Clone()
ClonedBill.TextLabel.Text = "Level up"
ClonedBill.Parent = v.Character.Head
v.leaderstats.Exp.Value = v.leaderstats.Exp.Value - Multiplier.Value
v.leaderstats.Level.Value = v.leaderstats.Level.Value + 1
v.Multiplier.Value = v.Multiplier.Value * 1.25

DataStore script (If Useful)

local DataStore = game:GetService("DataStoreService")
local ds8 = DataStore:GetDataStore("MultiSaveSystem")

game.Players.PlayerAdded:connect(function(player) 
local Multiplier = Instance.new("NumberValue",player)
Multiplier.Value = 20
Multiplier.Name = "Multiplier" wait (0.5)

local Multi = player.Multiplier
 Multi.Value = ds8:GetAsync(player.UserId) or 0
 ds8:SetAsync(player.UserId, Multi.Value)
 Multi.Changed:connect(function()
  ds8:SetAsync(player.UserId, Multi.Value)
 end)
end)


game.Players.PlayerRemoving:connect(function(player)
 ds8:SetAsync(player.UserId, player.Multiplier.Value)
end)

Please help me figure out the problem this is very annoying