MouseClick even isn't working right?

I'm assuming that you have two function local function tweenUp() --tween here-- end and local function tweenDown() --tween here-- end Well if you did have two functions, then you are calling it incorrectly. It's supposed to be tweenUp() and tweenDown if you want a function to be called Always remember that code is gonna be ran from the top to the final line of code, Also make sure that your script is a Global Script, not a local script(That is very important!) Here's an example

print("Hi") -- Executes first
wait(1)-- Executes next
print("Bye")--Executes last

Same thing with events! So if you clicked on something, Everything in that event will be done Then you do the next event

local clickdetector = game:GetService(Workspace):FindFirstChild("D1"):FindFirstChild("ClickDetector") -- Finds Workspace,D1 and Click Detector(aka the same way to type in game.Workspace.D1.ClickDetector)
local function tweenUp() 
	--tween--
end
local function tweenDown()
	--tween
end
clickdetector.MouseClick:Connect(function() -- Click to tween up
    tweenUp()
end)
 clickdetector.MouseClick:Connect(function() -- Click again to tween down
           tweenDown()
end)

If you wanted to do it all in one click you would do something like this

local function tweenUp() 
	--tween--
end
local function tweenDown()
	--tween
end
clickdetector.MouseClick:Connect(function() -- Click to tween up and tween down
   	 tweenUp()
	wait(1)
	tweenDown()
end)

Hopefully this is a great explanation of how to fix this