Why does my collectors sometimes collect twice more than the original value?

My cash collects automatically collect cash and put the value on the leaderboard. But sometimes the collecters randomly collects twice as more than the original value of the dropper cube, for example, the collectors collect $4 instead of $2.

Here is the code:

local Money = script.Parent.Amount
local Debris = game:GetService('Debris')

for i,v in pairs(script.Parent.Parent:GetChildren()) do
    if v.Name == "CollectorPart" then
        v.Touched:connect(function(Part)
            if Part:FindFirstChild('Cash') then
                Money.Value = Money.Value + Part.Cash.Value
                Debris:AddItem(Part,0.2)
                --print(Money.Value)
            end
        end)
    end
end

The Money is an int value where every 0.11 sec it sets to zero; here is the code:

while true do 
    wait(0.11)
    script.Parent.Value = 0
end

Thanks for the Help!