Why does my tool work in Roblox Studio but no online??

So I tried making my script so that when u click, tap, etc it will launch a fireball but this only works on roblox studio and not online. Idk why. THIS IS IN A SCRIPT. Pls Help! <3

My code

local tool = script.Parent
local handle = tool:WaitForChild("Handle")
local player = game.Players.LocalPlayer
local char = player.Character or player.CharacterAdded:Wait()
local head = char:WaitForChild("Head")
local ammo = 1

tool.Activated:Connect(function()
	
	
	if ammo == 1 then 
		ammo = 0
		
		local fireballclone = game.ServerStorage.BallEx:Clone()
			fireballclone.Parent = game.Workspace
			fireballclone.Position = head.Position + (head.CFrame.lookVector * 8)
		
	local v = Instance.new("BodyVelocity")
			v.MaxForce = Vector3.new(math.huge, math.huge, math.huge)
       	    v.Velocity = player.Character.UpperTorso.CFrame.lookVector * 80 
			v.Parent = fireballclone
		
	wait(3)
		ammo = 1
	end 
end)

The script used is a local script. If the game is filtering enabled, then the local script would not be able to access server-sided services such as ServerStorage.

Use ReplicatedStorage instead.

So if this is in a script, then you can't use LocalPlayer. This is a common mistake and its usually easily fixable. What you could do is put the script inside the tool and use .Parent to find the player.

This should work:

player = script.Parent.Parent.Parent

You will more than likely need to set Disabled = false if your moving the script or have it detect when its parent changes using:

script.Parent.AncestryChanged:Connect(function(c,p)
--do stuff
end)