attempt to index upvalue 'Character' (a nil value)?

I have try over and over and over again so many times but this is the same type of error I'm facing again.They said that 'Character' is a nil value.I don't understand what they mean.

I'm trying to make a projectile get thrown by using UserInputService.

local player = game.Players.LocalPlayer
local Character = player.Character
local db = true

UIS.InputBegan:Connect(function(Input, IsTyping)
	if IsTyping then return end
	local KP = Input.KeyCode
    if KP == Enum.KeyCode.E and db then
	if db == true then
	db = false
	mic:Clone()
	mic.Name = "MicToss"
	mic.Parent = Character
	mic.CFrame = Character.HumanoidRootPart.CFrame * CFrame.new(0.5,0,-5)
	
	local BV = Instance.new('BodyVelocity')
	BV.MaxForce = Vector3.new(math.huge,math.huge,math.huge)
	BV.Velocity = Character.Torso.CFrame.LookVector * 100
	BV.Parent = mic
	end
end

It is line 14 where I get the error.