[Read Below] - Attempted to make a level requirement for killing a certain mob. Can anyone Help?

So what i'm trying to do is make it where you have to be a certain level to get the Experience/Money from the mob. This is going to prevent exploiters from grinding in high level areas because they have to be to a certain level to gain the Experience/Money.

local Humanoid = script.Parent.Humanoid

function PwntX_X()
	local tag = Humanoid:FindFirstChild("creator")
	if tag ~= nil then
			local Leaderstats = tag.Value:FindFirstChild("leaderstats")
			local lvl = Leaderstats:FindFirstChild("Level")
			if lvl == 15 then
			if Leaderstats ~= nil then
				Leaderstats.Experience.Value = Leaderstats.Experience.Value + 25
				wait(0.1)
				script:Remove()
				end
			end
		end
	end
end

Humanoid.Died:Connect(PwntX_X)

local Humanoid = script.Parent.Humanoid

function PwntX_X()
	local tag = Humanoid:FindFirstChild("creator")
	if tag ~= nil then
		if tag.Value ~= nil then
			local Leaderstats = tag.Value:FindFirstChild("leaderstats")
			local lvl = Leaderstats:FindFirstChild("Level")
			if lvl == 15 then
			if Leaderstats ~= nil then
				Leaderstats.Money.Value = Leaderstats.Money.Value + 25
				wait(0.1)
				script:Remove()
				end
			end
		end
	end
end

Humanoid.Died:Connect(PwntX_X)