Invisible Script [Roblox]

local userInputService = game:GetService("UserInputService")

local character = script.Parent
local humanoid = character:WaitForChild("Humanoid")

local debounce = false
userInputService.InputBegan:Connect(function(input, gameProcessed)
    if gameProcessed then return end
-- Exit if chatting or typing in a TextBox
    if input.KeyCode == Enum.KeyCode.F and humanoid.Health > 0 then
        if not debounce then
            debounce = true
            print("Activate Invisiblity")
            game.ReplicatedStorage.InvisibleAbility:InvokeServer()
            debounce = false
        end
    end
end)