when i click a button to disable a boolvalue i get an error saying attempt to call a nil value?

Hello, cbeebiespoo!

Edit:

Apparently you are using each code on one part, so you dont want the click to toggle the value.

You just need to move the :Connect to under the function

Disable:

location = script.Parent.Parent.Parent
regen = script.Parent.Parent
save = regen:clone()

function onClicked()
    script.Parent.Parent.IsOutOfOrder.Value= true
end )

script.Parent.ClickDetector.MouseClick:Connect(onClicked)

Enable:

location = script.Parent.Parent.Parent
regen = script.Parent.Parent
save = regen:clone()

function onClicked()
    script.Parent.Parent.IsOutOfOrder.Value= false
end )

script.Parent.ClickDetector.MouseClick:Connect(onClicked)

Old answer:

I found 3 problems in your code:

1. You are calling the :Connect before defining the function, this can be easily fixed by moving the :Connect line to under the function definition

2. This doesn't really breaks your code, but may in the future. The :connect has been deprecated, it is recommended to use :Connect for new code.

3. The 2 scripts are reverting each other actions. You should use just one script to change the value, like so:

location = script.Parent.Parent.Parent
regen = script.Parent.Parent
save = regen:clone()

function onClicked()
    script.Parent.Parent.IsOutOfOrder.Value= not script.Parent.Parent.IsOutOfOrder.Value --This inverts the value from the BoolValue
end )

script.Parent.ClickDetector.MouseClick:Connect(onClicked)

If this solves your ploblem, please mark this answer as the "Accepted Answer"