Why wont the int value decrease?

Following my last question, thats been answered, I've joined 2 scripts so when the cannon ball hits the boat, it explodes, and takes 20 away from the int value. Now it had been working for a while, but when i turned, on line 47, math.random(1,3), into true, it has stopped decreasing. I'm pretty sure its a small error, but nothings coming out in the console. So can you guys please help identifying the problem?

ball = script.Parent
damage = 50
local debounce = true
function onTouched(hit)
    local RESET_SECONDS = 5
    local isTouched = false 


    ball.Touched:Connect(function(part)
        if isTouched then return end

        local car = ball:FindFirstAncestor("car")
        local value = if car then car:FindFirstChild("Int", true) else nil

        if not value then return end

        isTouched = true
        value.Value -= 20

        wait(RESET_SECONDS)
        isTouched = false
    end)


    local humanoid = hit.Parent:findFirstChild("Humanoid")
    if humanoid~=nil then
        tagHumanoid(humanoid)
        humanoid.Health = humanoid.Health - damage
        if debounce then
            debounce = false
            if humanoid.Health == 0 or humanoid.Health < 0 then
                local z = game.Players:FindFirstChild(game.ReplicatedStorage.asd.Value)
                z.leaderstats.Kills.Value += 1
                wait(2)
                debounce = true
            end
        end

        untagHumanoid(humanoid)
    else
        damage = damage / 2
        if damage < 2 then
            ball.Parent = nil
        end
    end

    if true then
        local explosion = Instance.new("Explosion")
        explosion.BlastRadius = 9
        explosion.BlastPressure = 1000000 -- these are really wussy units
        explosion.Position = script.Parent.Position
        explosion.Parent = game.Workspace
        connection:disconnect()
        ball.Parent = nil
    end

end

function tagHumanoid(humanoid)
    -- todo: make tag expire
    local tag = ball:findFirstChild("creator")
    if tag ~= nil then
        local new_tag = tag:clone()
        new_tag.Parent = humanoid
    end
end


function untagHumanoid(humanoid)
    if humanoid ~= nil then
        local tag = humanoid:findFirstChild("creator")
        if tag ~= nil then
            tag.Parent = nil
        end
    end
end

connection = ball.Touched:connect(onTouched)

r = game:service("RunService")
t, s = r.Stepped:wait()
d = t + 5.0 - s
while t < d do
    t = r.Stepped:wait()
end

ball.Parent = nil