Why is character a nil value if it works without an error in another local script?.

I am stuck on why this code is nil when it works perfectly fine on another local script? All of these scripts are in StarterPlayerScripts. The error message is Players.Zeppelin0330.PlayerScripts.LocalScript:1: attempt to index field 'Character' (a nil value)

if game.Players.LocalPlayer.Character.Beep.Value == 0 then -- this line states that character is a nil value
		game.Players.LocalPlayer.PlayerGui.ScreenGui.Dave.Grenade.Text = "x 2"
		end
game.Players.LocalPlayer.Character.Beep.Changed:Connect(function()
	print("why?")
	
		if game.Players.LocalPlayer.Character.Beep.Value == 1 then
	game.Players.LocalPlayer.PlayerGui.ScreenGui.Dave.Grenade.Text = "x 1"
	 else if game.Players.LocalPlayer.Character.Beep.Value == 0 then
		game.Players.LocalPlayer.PlayerGui.ScreenGui.Dave.Grenade.Text = "x 0"

	end
		end
		end)

this is the working one and it is similar to the one above but works?!

game.StarterGui.ScreenGui.Dave.Visible = true

local throwPower = 100
local debounce = true
local canThrow = true
local player = game.Players.LocalPlayer
game.Players.LocalPlayer:GetMouse().KeyDown:Connect(function(KeyPressed)
	if KeyPressed == "g" and debounce == true and player.Character.Beep.Value < 2 then
		player.Character.Beep.Value = player.Character.Beep.Value + 1
		print("it works")
			if player.Character.Team.Value == 2 then
		debounce = false
		print("hi")
		local Back = player.Backpack
		game.Workspace.StickGrenade:Clone().Parent = player.Backpack
		player.Character.Humanoid:EquipTool(Back.StickGrenade)
		player.Character.Humanoid.Died:Connect (function()
			
		end)
		end
		wait(1.5)
		end
	      
	wait(2)
	debounce = true
end)
		
	
		local player = game.Players.LocalPlayer
game.Workspace.Meep.Why.Changed:Connect(function()
	print("hi")
	game.Players.LocalPlayer.PlayerGui.ScreenGui.Dave.Visible = true
	
end)

game.Players.PlayerAdded:Connect(function(plr)
repeat wait() until plr.Character
if plr.Character.Beep.Value == 0 then
        plr.PlayerGui.ScreenGui.Dave.Grenade.Text = "x 2"
        end
plr.Character.Beep.Changed:Connect(function()
    print("why?") 

        if plr.Character.Beep.Value == 1 then
    plr.PlayerGui.ScreenGui.Dave.Grenade.Text = "x 1"
     else if plr.Character.Beep.Value == 0 then
        plr.PlayerGui.ScreenGui.Dave.Grenade.Text = "x 0"

    end
        end
        end)
end)

yes i know i'm a bad scripter