Что за ошибка? roblox studio

 local plr = game.Players.LocalPlayer  
local UIS = game:GetService("UserInputService")  
local RunService = game:GetService("RunService")  
 
local speed = 50  
local time = 1  
local isdashing = false  
 
local function onCharacterAdded(character)  
	if not character then return end  -- Проверка наличия персонажа 
 
	local humanoid = character:WaitForChild("Humanoid")  
	local humanoidRootPart = character:WaitForChild("HumanoidRootPart")  
 
	local function dash()  
		if not isdashing then  
			isdashing = true  
			humanoidRootPart.Velocity = humanoid.MoveDirection * speed  
			delay(time, function()  
				humanoidRootPart.Velocity = Vector3.new(0, 0, 0)  
				isdashing = false  
			end)  
		end  
	end  
 
	UIS.InputBegan:Connect(function(input, gameProcessed)  
		if not gameProcessed and input.KeyCode == Enum.KeyCode.Q then  
			dash()  
		end  
	end)  
end  
 
plr.CharacterAdded:Connect(onCharacterAdded)  
 
-- Проверка, если персонаж уже существует  
if plr.Character then  
	onCharacterAdded(plr.Character)  
end