Why does my script only work in play solo but not on the live server?

My script only works in play solo, when I play on the server it doesn't work this is the script

script.Parent.MouseButton1Click:connect(function()
  local RS = game:GetService("ReplicatedStorage")
  local item = RS:WaitForChild("LinkedSword")
  local price = 50
  local Player = game.Players.LocalPlayer
  local stats = Player:WaitForChild("leaderstats")
  if stats.Coins.Value>= price then
	stats.Coins.Value=stats.Coins.Value - price
	local cloned=item:Clone()
  local cloned2=item:Clone()
  cloned2.Parent=Player.Backpack
  cloned.Parent=Player.StarterGear
  end
 end)

Here's a link to a screen shot of the errors.

Hope you can help.

You're defining Player as LocalPlayer which only works in LocalScript. You can either put this script inside a LocalScript then set up a remote event that would fire the event on the server side or you can redefine the player as the one who clicked the button