No errors show up but the script still won't work? I need help to make it function properly

Here is the script maybe someone can see something I don't, after all, I'm a novice. This local script originally was in a hopperbin and then had a script, vector3value, part with a spotlight and script inside it, as well as a billboard gui with an image label inside it.

enabled = true
---------------------------------

wait(1)

local tool = Instance.new("Tool")
local Tool = tool
Tool.Parent = game.Players.LocalPlayer.Backpack
local play = game.Players.LocalPlayer
local char = play.Character
local sound = Instance.new("Sound")
sound.Name = "SongShine2"
sound.Volume = 0.15
sound.SoundId = "http://www.roblox.com/asset/?id=176251596"
sound.Parent = char.Head
local mouse = play:GetMouse()
db = true
Tool.Activated:connect(function(mouse)  
    mouse.Button1Down:connect(function()    
    local tim = tonumber(string.sub(game.Lighting.TimeOfDay, 0, 2))
    if tim >= 7 and tim <= 18 then else return end
    if not db then return end 
        db = false
        sound:play() 
        local model = Instance.new("Model")
        local sparkle = Instance.new("Part")
        sparkle.Parent = model
        model.Name = ""..play.Name.."'s Sunshine!"
        model.Parent = game.Workspace
        local act = Instance.new("Vector3Value")
        act.Value = 0
        act.Value = char.Torso.Position 
        act.Parent = model
        local rand = math.random(8,15)


print(1)
local colors = {Color3.new(243/255,227/255,0), Color3.new(243/255, 154/255, 0), Color3.new(243/255, 185/255, 10/255), Color3.new(243/255, 203/255, 43/255), Color3.new(227/255, 227/255, 131/255)}


function spark()
    local sparkle = Instance.new("Part")
    sparkle.Parent = model
    local gui = Instance.new("BillboardGui")
    local size = math.random(10,50)/10
    gui.Parent = sparkle
    gui.size = math.random(10,50)/10
    gui.Size = UDim2.new(size, 0, size, 0) 
    gui.AbsolutePosition = Vector2.new(0,0)
    gui.Adornee = sparkle
    gui.Enabled = true
    gui.Size = UDim2{2,0},{2,0}
    gui.Archivable = true
    gui.AutoLocalize = true
    gui.ZIndexBehavior = "Global"
    local img = Instance.new("ImageLabel")
    img.Parent = gui
    img.AbsoluteSize = Vector2.new(4,4)
    img.BackgroundColor3 = Color3.new(255,255,255)
    img.BackgroundTransparency = 1
    img.LayoutOrder = 0
    img.Size = UDim2.new{1,0},{1,0}
    img.SizeConstraint = "RelativeXY"
    img.Visible = true
    img.ZIndex = 1
    img.Archivable = true
    img.ImageId = "http://www.roblox.com/asset?id=18641204"
    img.ScaleType = "Stretch"
    img.AutoLocalize = true

for i = 1, 36 do
    wait(0.01)
    gui.img.Rotation = gui.ImageLabel.Rotation + 10
end

    sparkle.Position = act.Value + Vector3.new(math.random(-30,30), math.random(5,15), math.random(-30,30)) 
end

local z = model:GetChildren() 
for i= 1, #z do 
    if z[i]:IsA("BasePart") and z[i].Name ~= "Sparkle" then
        local c = math.random(1, #colors)
        z[i].Light.Color = colors[c]
        z[i].Light.Enabled = true 
    end
end 


print(2)
local zy = game.Players:GetPlayers() 
for i= 1, #z do 
    if z[i].Character and z[i].Character:findFirstChild("Torso") and (z[i].Character.Torso.Position -  act.Value).magnitude < 40 then
    local ff = Instance.new("ForceField") 
    ff.Name = "SunShield"       
    ff.Parent = z[i].Character
    game.Debris:AddItem(ff, 18)
    end
end 


local count = 0 
while true do 
wait(0.1)
count = count + 1
if count >= 5 then
    spark()
    count = 0 
end
z()
local Light = Instance.new("PointLight")
Light.Parent = sparkle

for i= 1, #z do 
    if z[i]:IsA("BasePart") and z[i].Name ~= "Sparkle" then
        z[i].Light.Brightness = z[i].Light.Brightness + (math.random(-1,1)/10)
        z[i].Light.Range = z[i].Light.Range+ math.random(-1,1)/3
        z[i].Light.Angle = z[i].Light.Angle + math.random(-1,1) 
    end
end     
end
        for i = 1, rand do
        local shine = sparkle:clone()
        local rapos = char.Torso.Position + Vector3.new(math.random(-35,35),math.random(25,25),math.random(-35,35))
        local ratarg = char.Torso.Position + Vector3.new(math.random(-45,45),math.random(0,0),math.random(-45,45))
        shine.CFrame = CFrame.new(rapos, ratarg)
        shine.Parent = model
        end
        wait() 
        act.Disabled = false 
        wait(24)
        model:Destroy()
        wait(10)
        db = true 



    end)
end)

tool.Unequipped:connect(function(mouse)



end)