Object Value is recognized as nil value in local script and not server script for Inventory System?

I'm currently trying to make a backpack/inventory system with keypress and clicking but the server script doesn't work with keypress and the local script has the following error:

Local Script Error:

Players.WyattagumsBackUp.PlayerGui.BackpackGUI.Background.a.equipbutton.LocalScript:24: attempt to index upvalue 'itm' (a nil value)

Local Script:

local lab = script.Parent.Parent.label
local num = script.Parent.Parent.number
local but = script.Parent
local pak = script.Parent.Parent.Parent.Backpack
local itm = script.Parent.Parent.item.Value
local plr = game.Players.LocalPlayer
local chr = plr.Character
local eqp = script.Parent.Parent.equipped.Value

function onClicked()
	if eqp == false then
		itm.Parent = chr
		eqp = true
			elseif eqp == true then
				itm.Parent = pak
				eqp = false
	end	
end
script.Parent.MouseButton1Down:connect(onClicked)

function onKeyPress(inputObject, gameProcessedEvent)
	if inputObject.KeyCode == Enum.KeyCode.One then
		if eqp == false then
			itm.Parent = chr
			eqp = true
				elseif eqp == true then
					itm.Parent = pak
					eqp = false
	
		end	
	end
end
 
game:GetService("UserInputService").InputBegan:connect(onKeyPress)

The server script works perfectly with the clicking but not the keypress, whilst the local script sends out the said error...

Server Script:

local lab = script.Parent.Parent.label
local num = script.Parent.Parent.number
local but = script.Parent
local pak = script.Parent.Parent.Parent.Backpack
local itm = script.Parent.Parent.item.Value
local plr = script.Parent.Parent.Parent.Parent.Parent.Parent
local chr = plr.Character
local eqp = script.Parent.Parent.equipped.Value

function onClicked()
	if eqp == false then
		itm.Parent = chr
		eqp = true
			elseif eqp == true then
				itm.Parent = pak
				eqp = false
	end	
end
script.Parent.MouseButton1Down:connect(onClicked)

function onKeyPress(inputObject, gameProcessedEvent)
	if inputObject.KeyCode == Enum.KeyCode.One then
		if eqp == false then
			itm.Parent = chr
			eqp = true
				elseif eqp == true then
					itm.Parent = pak
					eqp = false
	
		end	
	end
end
 
game:GetService("UserInputService").InputBegan:connect(onKeyPress)

Both scripts are relatively the same, except for the one change which is the "local plr"

Here is an image of the system paths: https://imgur.com/MoSPTkR

If you would require further explanation/information then please do respond to this post on your concerns!