Why does this script only work inside roblox studio but not the actual game?

local tool = script.Parent
local handle = tool.Handle
local player = game.Players.LocalPlayer
local Character = player.Character
local model = game.Workspace

tool.Activated:connect(function()
for i, v in pairs(Character:GetChildren()) do
    if v:IsA("BasePart") and v.Name ~= 'HumanoidRootPart' then
         v.Transparency = 0.5 
          tool.Unequipped:connect(function()
           for i, v in pairs(model:GetChildren()) do
              if v.Name == "Part" then
                 v.Transparency = 0
                 v.CanCollide = true

        end
       end
      end)
     end
    end
   end)


tool.Deactivated:connect(function()
    for i, v in pairs(Character:GetChildren()) do
        if v:IsA("BasePart") and v.Name ~= 'HumanoidRootPart' then
            v.Transparency = 0
        end
    end
end)

tool.Activated:connect(function()
for i, v in pairs(model:GetChildren()) do
    if v.Name == "Part" then
        v.Transparency = 0.5
        v.CanCollide = false
        handle.BrickColor = BrickColor.new("White")
        handle.Material = "Neon"
          tool.Deactivated:connect(function()
            for i, v in pairs(model:GetChildren()) do
              if v.Name == "Part" then
                handle.Material = "Plastic"
                v.Transparency = 0
                v.CanCollide = true

        end
       end
      end)
     end
    end
   end)

This script only works inside studio but not the actual game.