Parent doesn't exist? Indexing nil.

Hello, I'm making a data store changer for a speedrun game. I already have the data store set up, and I'm working on the data store updater. Here is my code:

local Players = game:GetService("Players")

local pausetime = script.Parent
local time = script.Parent.Parent:FindFirstChild("SpeedunTimerGUI")

local function onPauseButtonTouch(touchpart)
    local partParent = touchpart.Parent
    local humanoid = partParent:FindFirstChildWhichIsA("Humanoid")
    if humanoid then
        local player = Players:GetPlayerFromCharacter(partParent)
        local leaderstats = player.leaderstats
        local pb = leaderstats and leaderstats:FindFirstChild("Best Time")
        if pb then
            if leaderstats.BestTime > time then
                leaderstats.BestTime.Value = time
            end
        end
    end
end
pausetime.Touched:Connect(onPauseButtonTouch())

I get the error on line 7 telling me "Workspace.Speedrun Timer.Timer_Pause.Script:7: attempt to index nil with 'Parent'". What is the problem with referencing the parent?